double

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• Canada, General-American, Received-Pronunciation: /ˈdʌb.əl/
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• Canada, General-American, Received-Pronunciation: [ˈdʌb.ɫ̩]
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• General-American: Recorded audio is listed in the source snapshot.
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• Recorded audio is listed in the source snapshot.
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• rhymes with -ʌbəl
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• CMU ARPABET: D AH1 B AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
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PIE word *dwóh1 From Middle English double, from Old French doble, double, from Latin duplus (“twofold”). Doublet of doppio and duple.

416 source translations are retained for this English entry.

• Albanian: dysh — made up of two matching or complementary elements
• Amharic: ድርብ (dərb) — made up of two matching or complementary elements
• Arabic: ثُنَائِيّ (ṯunāʔiyy) — made up of two matching or complementary elements
• Armenian: երկակի (erkaki) — made up of two matching or complementary elements
• Asturian: doble — made up of two matching or complementary elements
• Asturian: duble — made up of two matching or complementary elements
• Asturian: doblu — made up of two matching or complementary elements
• Asturian: dublu — made up of two matching or complementary elements
• Basque: bikoitz — made up of two matching or complementary elements
• Belarusian: двайны́ (dvajný) — made up of two matching or complementary elements
• Belarusian: падво́йны (padvójny) — made up of two matching or complementary elements
• Bengali: দ্বিগুণ (digun) — made up of two matching or complementary elements
• Bulgarian: дво́ен (dvóen) — made up of two matching or complementary elements
• Catalan: doble — made up of two matching or complementary elements
• Chinese Mandarin: 雙重 /双重 (shuāngchóng) — made up of two matching or complementary elements
• Czech: dvojitý — made up of two matching or complementary elements
• Danish: dobbelt — made up of two matching or complementary elements
• Dutch: dubbel — made up of two matching or complementary elements
• Esperanto: duobla — made up of two matching or complementary elements
• Finnish: kaksois- — made up of two matching or complementary elements
• Finnish: kaksinkertainen — made up of two matching or complementary elements
• French: double — made up of two matching or complementary elements
• Friulian: dopli — made up of two matching or complementary elements
• Galician: dobre — made up of two matching or complementary elements
• Georgian: ორმაგი (ormagi) — made up of two matching or complementary elements
• German: doppelt — made up of two matching or complementary elements
• Greek: διπλός (diplós) — made up of two matching or complementary elements
• Ancient Greek: διπλόος (diplóos) — made up of two matching or complementary elements
• Ancient Greek: διπλοῦς (diploûs) — made up of two matching or complementary elements
• Hausa: biyu — made up of two matching or complementary elements
• Hebrew: כפול (kaful) — made up of two matching or complementary elements
• Hindi: दुगना (dugnā) — made up of two matching or complementary elements
• Hungarian: kettős — made up of two matching or complementary elements
• Ido: duopla — made up of two matching or complementary elements
• Indonesian: ganda — made up of two matching or complementary elements
• Indonesian: kembar dua — made up of two matching or complementary elements
• Indonesian: dobel — made up of two matching or complementary elements
• Interlingua: duple — made up of two matching or complementary elements
• Irish: dúbailte — made up of two matching or complementary elements
• Italian: doppio — made up of two matching or complementary elements
• Italian: doppia — made up of two matching or complementary elements
• Japanese: 二重 (futae) — made up of two matching or complementary elements
• Japanese: 二重 (nijū) — made up of two matching or complementary elements
• Japanese: 双 (sō) — made up of two matching or complementary elements
• Khmer: ទ្វេ (tvei) — made up of two matching or complementary elements
• Korean: 두 배의 (du bae-ui) — made up of two matching or complementary elements
• Korean: 이중 (ijung) — made up of two matching or complementary elements
• Latin: duplex — made up of two matching or complementary elements
• Lombard: dopi — made up of two matching or complementary elements
• Lombard: dopła — made up of two matching or complementary elements
• Macedonian: двоен (dvoen) — made up of two matching or complementary elements
• Malay: kembar — made up of two matching or complementary elements
• Manx: dooblit — made up of two matching or complementary elements
• Māori: -rua — made up of two matching or complementary elements
• Māori: taurua — made up of two matching or complementary elements
• Norman: doubl'ye — made up of two matching or complementary elements
• Norwegian Bokmål: dobbelt — made up of two matching or complementary elements
• Occitan: doble — made up of two matching or complementary elements
• Persian: دوگانه (dogâne) — made up of two matching or complementary elements
• Persian: دوبل (dubl) — made up of two matching or complementary elements
• Polish: podwójny — made up of two matching or complementary elements
• Portuguese: duplo — made up of two matching or complementary elements
• Romanian: dublu — made up of two matching or complementary elements
• Romansh: dubel — made up of two matching or complementary elements
• Romansh: dobel — made up of two matching or complementary elements
• Russian: двойно́й (dvojnój) — made up of two matching or complementary elements
• Sardinian: dupio — made up of two matching or complementary elements
• Serbo-Croatian: дво̑јнӣ — made up of two matching or complementary elements
• Serbo-Croatian: dvȏjnī — made up of two matching or complementary elements
• Sicilian: dupru — made up of two matching or complementary elements
• Sicilian: duplu — made up of two matching or complementary elements
• Sicilian: dùbulu — made up of two matching or complementary elements
• Sicilian: dùbbulu — made up of two matching or complementary elements
• Slovak: dvojitý — made up of two matching or complementary elements
• Slovene: dvojen — made up of two matching or complementary elements
• Southern Altai: эки катап кӧп (eki katap köp) — made up of two matching or complementary elements
• Spanish: doble — made up of two matching or complementary elements
• Swedish: dubbel — made up of two matching or complementary elements
• Swedish: tvåfaldig — made up of two matching or complementary elements
• Tagalog: dalwahan — made up of two matching or complementary elements
• Telugu: రెట్టింపు (reṭṭimpu) — made up of two matching or complementary elements
• Thai: สองเท่า — made up of two matching or complementary elements
• Turkish: çift — made up of two matching or complementary elements
• Turkish: ikili — made up of two matching or complementary elements
• Ukrainian: двійни́й (dvijnýj) — made up of two matching or complementary elements
• Ukrainian: подві́йний (podvíjnyj) — made up of two matching or complementary elements
• Ukrainian: двої́стий (dvojístyj) — made up of two matching or complementary elements
• Urdu: دُگْنا (dugnā) — made up of two matching or complementary elements
• Venetan: dopio — made up of two matching or complementary elements
• Venetan: dupio — made up of two matching or complementary elements
• Vietnamese: kép — made up of two matching or complementary elements
• Vietnamese: đôi — made up of two matching or complementary elements
• Welsh: dwbl — made up of two matching or complementary elements
• Welsh: dwbwl — made up of two matching or complementary elements
• Arabic: ضِعْف (ḍiʕf) — twice the quantity
• Arabic: دَبَل (dabal) — twice the quantity
• Arabic: ضِعْف (ḍiʕf) — twice the quantity
• Armenian: կրկնակի (krknaki) — twice the quantity
• Belarusian: двайны́ (dvajný) — twice the quantity
• Belarusian: падво́йны (padvójny) — twice the quantity
• Bulgarian: дво́ен (dvóen) — twice the quantity
• Catalan: doble — twice the quantity
• Czech: dvojitý — twice the quantity
• Esperanto: duopa — twice the quantity
• Finnish: kaksinkertainen — twice the quantity
• Finnish: tupla- — twice the quantity
• French: double — twice the quantity
• German: doppelt — twice the quantity
• Greek: διπλάσιος (diplásios) — twice the quantity
• Ancient Greek: διπλάσιος (diplásios) — twice the quantity
• Indonesian: rangkap dua — twice the quantity
• Indonesian: dobel — twice the quantity
• Irish: dúbailte — twice the quantity
• Italian: doppio — twice the quantity
• Japanese: 二倍 (nibai) — twice the quantity
• Japanese: 二重 (futae) — twice the quantity
• Japanese: 二重 (nijū) — twice the quantity
• Latin: duplus — twice the quantity
• Latin: duplex — twice the quantity
• Latin: binus — twice the quantity
• Lombard: dopi — twice the quantity
• Malayalam: ഇരട്ടി (iraṭṭi) — twice the quantity
• Manx: dooblit — twice the quantity
• Māori: huarua — twice the quantity
• Māori: taurua — twice the quantity
• Norman: doubl'ye — twice the quantity
• Occitan: doble — twice the quantity
• Persian: دوبل (dubl) — twice the quantity
• Polish: podwójny — twice the quantity
• Polish: podwojony — twice the quantity
• Portuguese: dobro — twice the quantity
• Romanian: dublu — twice the quantity
• Russian: двойно́й (dvojnój) — twice the quantity
• Sanskrit: द्वय (dvaya) — twice the quantity
• Scottish Gaelic: dùbailte — twice the quantity
• Slovene: dvojen — twice the quantity
• Slovene: dvakraten — twice the quantity
• Spanish: doble — twice the quantity
• Spanish: duplo — twice the quantity
• Spanish: dúplex — twice the quantity
• Spanish: duplado (disused) — twice the quantity
• Spanish: duplicado — twice the quantity
• Spanish: redoblado — twice the quantity
• Swahili: maradufu — twice the quantity
• Swedish: dubbel — twice the quantity
• Turkish: duble — twice the quantity
• Ukrainian: двійни́й (dvijnýj) — twice the quantity
• Ukrainian: подві́йний (podvíjnyj) — twice the quantity
• Welsh: dwbl — twice the quantity
• Welsh: dwbwl — twice the quantity
• Finnish: kaksinkertainen — of a family relationship, related on both the maternal and paternal sides of a family
• Bulgarian: дво́ен (dvóen) — designed for two
• Dutch: tweepersoons- — designed for two
• Finnish: kahdelle — designed for two
• German: doppel- — designed for two
• Norman: doubl'ye — designed for two
• Polish: dwuosobowy — designed for two
• Polish: dwumiejscowy — designed for two
• Russian: двойно́й (dvojnój) — designed for two
• Spanish: doble — designed for two
• Swedish: dubbel — designed for two
• Bulgarian: удво́ен (udvóen) — folded in two; composed of two layers
• Bulgarian: сгъ́нат на две (sgǎ́nat na dve) — folded in two; composed of two layers
• Finnish: kaksitasoinen — folded in two; composed of two layers
• German: doppellagig — folded in two; composed of two layers
• German: zweilagig — folded in two; composed of two layers
• Indonesian: lapis dua — folded in two; composed of two layers
• Indonesian: ganda — folded in two; composed of two layers
• Irish: dúbailte — folded in two; composed of two layers
• Manx: dooblit — folded in two; composed of two layers
• Romanian: dublat — folded in two; composed of two layers
• Slovene: dvojen — folded in two; composed of two layers
• Spanish: doblado — folded in two; composed of two layers
• Spanish: bicapa — folded in two; composed of two layers
• Swedish: dubbel — folded in two; composed of two layers
• Spanish: encorvado — stooping; bent over
• Spanish: doblado — stooping; bent over
• Swedish: dubbelvikt — stooping; bent over
• Bulgarian: дво́йствен (dvójstven) — having two aspects; ambiguous
• Finnish: kaksois- — having two aspects; ambiguous
• German: doppelt — having two aspects; ambiguous
• Indonesian: ganda — having two aspects; ambiguous
• Norman: doubl'ye — having two aspects; ambiguous
• Polish: dwojaki — having two aspects; ambiguous
• Romanian: dublu — having two aspects; ambiguous
• Slovene: dvojen — having two aspects; ambiguous
• Spanish: doble — having two aspects; ambiguous
• Swedish: dubbel — having two aspects; ambiguous
• Swedish: tvetydig — having two aspects; ambiguous
• Bulgarian: двули́чен (dvulíčen) — false, deceitful, or hypocritical
• Finnish: kaksois- — false, deceitful, or hypocritical
• German: doppel- — false, deceitful, or hypocritical
• Norman: doubl'ye — false, deceitful, or hypocritical
• Slovene: dvojen — false, deceitful, or hypocritical
• Spanish: doble — false, deceitful, or hypocritical
• Spanish: dúplice — false, deceitful, or hypocritical
• Swedish: dubbel — false, deceitful, or hypocritical
• Bulgarian: ки́чест (kíčest) — of flowers, having more than the normal number of petals
• Finnish: kerrottu — of flowers, having more than the normal number of petals
• German: gefüllt — of flowers, having more than the normal number of petals
• Norman: doubl'ye — of flowers, having more than the normal number of petals
• Spanish: doble — of flowers, having more than the normal number of petals
• Dutch: contra — in music, of an instrument, sounding an octave lower
• Finnish: kontra- — in music, of an instrument, sounding an octave lower
• German: kontra- — in music, of an instrument, sounding an octave lower
• Finnish: tupla — in music, of time, twice as fast.
• Bulgarian: двойно (dvojno) — twice the number or size etc
• Catalan: doble — twice the number or size etc
• Finnish: kaksinkertainen määrä — twice the number or size etc
• French: double — twice the number or size etc
• German: Doppelte — twice the number or size etc
• Hungarian: dupla — twice the number or size etc
• Hungarian: kétszeres — twice the number or size etc
• Hungarian: kétszer annyi/akkora — twice the number or size etc
• Hungarian: duplaannyi — twice the number or size etc
• Hungarian: duplaakkora — twice the number or size etc
• Indonesian: ganda — twice the number or size etc
• Italian: doppio — twice the number or size etc
• Japanese: 二倍 (nibai) — twice the number or size etc
• Japanese: 二重 (futae) — twice the number or size etc
• Japanese: 二重 (nijū) — twice the number or size etc
• Māori: rearua — twice the number or size etc
• Polish: dwukrotność — twice the number or size etc
• Portuguese: dobro — twice the number or size etc
• Spanish: doble — twice the number or size etc
• Spanish: duplo — twice the number or size etc
• Swedish: dubbel — twice the number or size etc
• Bulgarian: двойник (dvojnik) — a person resembling or standing for another
• Czech: dvojník — a person resembling or standing for another
• Dutch: dubbelganger — a person resembling or standing for another
• Dutch: dubbelgangster — a person resembling or standing for another
• Esperanto: sozio — a person resembling or standing for another
• Esperanto: duoblulo — a person resembling or standing for another
• Finnish: kaksoisolento — a person resembling or standing for another
• French: double — a person resembling or standing for another
• French: sosie — a person resembling or standing for another
• Georgian: ორეული (oreuli) — a person resembling or standing for another
• German: Doppelgänger — a person resembling or standing for another
• German: Double — a person resembling or standing for another
• Hebrew: כפיל (kafyl) — a person resembling or standing for another
• Hebrew: כפילה (kfila) — a person resembling or standing for another
• Hungarian: dublőr — a person resembling or standing for another
• Indonesian: kembaran — a person resembling or standing for another
• Irish: dúbailt — a person resembling or standing for another
• Italian: sosia — a person resembling or standing for another
• Italian: doppione — a person resembling or standing for another
• Japanese: 替え玉 (kaedama) — a person resembling or standing for another
• Lombard: sòsia — a person resembling or standing for another
• Lombard: dopi — a person resembling or standing for another
• Lombard: dopła — a person resembling or standing for another
• Polish: sobowtór — a person resembling or standing for another
• Portuguese: sósia — a person resembling or standing for another
• Russian: двойни́к (dvojník) — a person resembling or standing for another
• Serbo-Croatian: dvojnik — a person resembling or standing for another
• Serbo-Croatian: dvojnica — a person resembling or standing for another
• Slovene: dvojnik — a person resembling or standing for another
• Slovene: dvojnica — a person resembling or standing for another
• Spanish: doble — a person resembling or standing for another
• Swedish: dubbelgångare — a person resembling or standing for another
• Turkish: dublör — a person resembling or standing for another
• Ukrainian: двійни́к (dvijnýk) — a person resembling or standing for another
• Finnish: tupla — a drink with double amount of alcohol
• French: double — a drink with double amount of alcohol
• German: Doppelter — a drink with double amount of alcohol
• Italian: doppio — a drink with double amount of alcohol
• Russian: двойно́й (dvojnój) — a drink with double amount of alcohol
• Spanish: doble — a drink with double amount of alcohol
• Swedish: dubbel — a drink with double amount of alcohol
• Finnish: kaksoiskappale — redundant item for which an identical item already exists
• French: doublon — redundant item for which an identical item already exists
• Hungarian: duplikátum — redundant item for which an identical item already exists
• Hungarian: másodpéldány — redundant item for which an identical item already exists
• Indonesian: rangkap dua — redundant item for which an identical item already exists
• Indonesian: dobel — redundant item for which an identical item already exists
• Italian: doppione — redundant item for which an identical item already exists
• Polish: dublet — redundant item for which an identical item already exists
• Slovene: dvojnik — redundant item for which an identical item already exists
• Swedish: dubblett — redundant item for which an identical item already exists
• Catalan: batada doble — baseball: a two-base hit
• French: double — baseball: a two-base hit
• Korean: 2루타 (iruta) — baseball: a two-base hit
• Armenian: կրկնապատկել (krknapatkel) — (transitive) to multiply by two
• Asturian: doblar — (transitive) to multiply by two
• Belarusian: падво́йваць (padvójvacʹ) — (transitive) to multiply by two
• Belarusian: падво́іць (padvóicʹ) — (transitive) to multiply by two
• Bulgarian: удвоявам (udvojavam) — (transitive) to multiply by two
• Catalan: doblar — (transitive) to multiply by two
• Czech: zdvojnásobit — (transitive) to multiply by two
• Esperanto: duobligi — (transitive) to multiply by two
• Finnish: kaksinkertaistaa — (transitive) to multiply by two
• French: doubler — (transitive) to multiply by two
• German: verdoppeln — (transitive) to multiply by two
• German: doppeln — (transitive) to multiply by two
• German: verzweifachen — (transitive) to multiply by two
• Greek: διπλασιάζω (diplasiázo) — (transitive) to multiply by two
• Ancient Greek: διπλασιάζω (diplasiázō) — (transitive) to multiply by two
• Ancient Greek: διπλόω (diplóō) — (transitive) to multiply by two
• Hebrew: הכפיל (hikhpíl) — (transitive) to multiply by two
• Hungarian: megkétszerez — (transitive) to multiply by two
• Hungarian: megkettőz — (transitive) to multiply by two
• Hungarian: megdupláz — (transitive) to multiply by two
• Ido: duopligar — (transitive) to multiply by two
• Indonesian: menggandakan — (transitive) to multiply by two
• Irish: dúbail — (transitive) to multiply by two
• Italian: doppiare — (transitive) to multiply by two
• Japanese: 二倍する (nibai suru) — (transitive) to multiply by two
• Latin: duplicō — (transitive) to multiply by two
• Malay: melipat ganda — (transitive) to multiply by two
• Malay: melipatgandakan — (transitive) to multiply by two
• Māori: whakarearua — (transitive) to multiply by two
• Māori: tāpara — (transitive) to multiply by two
• Māori: huarua — (transitive) to multiply by two
• Polish: podwajać — (transitive) to multiply by two
• Polish: podwoić — (transitive) to multiply by two
• Polish: dublować — (transitive) to multiply by two
• Polish: zdublować — (transitive) to multiply by two
• Portuguese: dobrar — (transitive) to multiply by two
• Portuguese: duplicar — (transitive) to multiply by two
• Romanian: dubla — (transitive) to multiply by two
• Romanian: îndoi — (transitive) to multiply by two
• Russian: удва́ивать (udváivatʹ) — (transitive) to multiply by two
• Russian: удво́ить (udvóitʹ) — (transitive) to multiply by two
• Slovene: podvojiti — (transitive) to multiply by two
• Spanish: duplicar — (transitive) to multiply by two
• Spanish: doblar — (transitive) to multiply by two
• Spanish: redoblar — (transitive) to multiply by two
• Swedish: dubbla — (transitive) to multiply by two
• Swedish: fördubbla — (transitive) to multiply by two
• Swedish: dubblera — (transitive) to multiply by two
• Ukrainian: подво́ювати (podvójuvaty) — (transitive) to multiply by two
• Ukrainian: подво́їти (podvójity) — (transitive) to multiply by two
• Vietnamese: nhân đôi — (transitive) to multiply by two
• Vietnamese: gấp đôi — (transitive) to multiply by two
• Belarusian: падво́йвацца (padvójvacca) — (intransitive) to increase by 100%
• Belarusian: падво́іцца (padvóicca) — (intransitive) to increase by 100%
• Bulgarian: удвоявам (udvojavam) — (intransitive) to increase by 100%
• Catalan: duplicar-se — (intransitive) to increase by 100%
• Catalan: doblar-se — (intransitive) to increase by 100%
• Esperanto: duobliĝi — (intransitive) to increase by 100%
• Finnish: kaksinkertaistua — (intransitive) to increase by 100%
• German: sich verdoppeln — (intransitive) to increase by 100%
• German: sich verzweifachen — (intransitive) to increase by 100%
• Hungarian: megduplázódik — (intransitive) to increase by 100%
• Hungarian: megkétszereződik — (intransitive) to increase by 100%
• Hungarian: megkettőződik — (intransitive) to increase by 100%
• Polish: podwajać się — (intransitive) to increase by 100%
• Polish: podwoić się — (intransitive) to increase by 100%
• Russian: удва́иваться (udváivatʹsja) — (intransitive) to increase by 100%
• Russian: удво́иться (udvóitʹsja) — (intransitive) to increase by 100%
• Slovene: podvojiti — (intransitive) to increase by 100%
• Spanish: duplicarse — (intransitive) to increase by 100%
• Spanish: redoblarse — (intransitive) to increase by 100%
• Swedish: dubbla — (intransitive) to increase by 100%
• Swedish: fördubbla — (intransitive) to increase by 100%
• Ukrainian: подво́юватися (podvójuvatysja) — (intransitive) to increase by 100%
• Ukrainian: подво́їтися (podvójitysja) — (intransitive) to increase by 100%
• Bulgarian: сгъвам на две (sgǎvam na dve) — to fold over so as to make two folds
• Finnish: laskostaa — to fold over so as to make two folds
• German: verdoppeln — to fold over so as to make two folds
• Ancient Greek: διπλόω (diplóō) — to fold over so as to make two folds
• Irish: dúbail — to fold over so as to make two folds
• Māori: tānumi — to fold over so as to make two folds
• Portuguese: dobrar — to fold over so as to make two folds
• Spanish: doblar — to fold over so as to make two folds
• Swedish: dubbelvika — to fold over so as to make two folds
• Bulgarian: свивам (svivam) — to clench
• Finnish: puristaa — to clench
• German: ballen — to clench
• Spanish: apretar — to clench
• Finnish: liittää — to join
• Indonesian: berpasangan — to join
• Spanish: emparejar — to join
• Bulgarian: копирам (kopiram) — to copy
• Finnish: toistaa — to copy
• Indonesian: menggandakan — to copy
• Indonesian: menduplikat — to copy
• Irish: dúbail — to copy
• Japanese: 複製する (fukusei suru) — to copy
• Spanish: duplicar — to copy
• Swedish: duplicera — to copy
• Finnish: olla kaksoisroolissa — to serve two roles
• German: doubeln — to serve two roles
• Indonesian: merangkap — to serve two roles
• Spanish: hacer las veces de — to serve two roles
• Finnish: tehdä äkkikäännös — to turn sharply
• Spanish: doblar — to turn sharply
• Spanish: torcer — to turn sharply
• Finnish: kiertää — nautical: to sail around something
• Spanish: circunnavegar — nautical: to sail around something
• Swedish: runda — nautical: to sail around something
• Finnish: toistaa — music: to duplicate a part
• Finnish: kerrata — music: to duplicate a part
• Swedish: dubblera — music: to be capable of performing upon an additional instrument
• Bulgarian: контрирам (kontriram) — bridge: to make a call that will double certain scoring points
• Finnish: tuplata — bridge: to make a call that will double certain scoring points
• German: kontrieren — bridge: to make a call that will double certain scoring points
• Spanish: doblar — bridge: to make a call that will double certain scoring points
• Swedish: dubbla — bridge: to make a call that will double certain scoring points
• Bulgarian: дублирам (dubliram) — to act as substitute
• Finnish: korvata — to act as substitute
• German: doubeln — to act as substitute
• Polish: zastępować — to act as substitute
• Polish: zastąpić — to act as substitute
• Polish: dublować — to act as substitute
• Polish: zdublować — to act as substitute
• Spanish: ser doble de — to act as substitute
• Spanish: hacer de doble de — to act as substitute
• Swedish: ersätta — to act as substitute
• Finnish: tuplata — to go at twice the normal speed
• German: doppeln — to go at twice the normal speed
• Spanish: duplicar la velocidad — to go at twice the normal speed
• Finnish: kaksinkertaistaa — to multiply the effect or strength of by two
• Finnish: tuplata — to multiply the effect or strength of by two
• Māori: tāpara — to multiply the effect or strength of by two
• Spanish: duplicar — to multiply the effect or strength of by two
• Spanish: acumular doblemente — to multiply the effect or strength of by two