noun · 6 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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Canada:/ˈɒksɪd͡ʒən/
New-Zealand:/ˈɒksəd͡ʒən/
New-Zealand:[ˈɔ̟ksəd͡ʒən]
CMU ARPABET:AA1 K S AH0 JH AH0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
CMU ARPABET 2:AA1 K S IH0 JH AH0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
The chemical element (symbol O) with an atomic number of 8 and relative atomic mass of 15.9994. It is a colorless and odorless gas. Sometimes called elemental oxygen to distinguish it from molecular oxygen.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Examples
Holonyms: dioxygen, O2, oxygen (loose sense)
By molar fraction, calcium oxide contains equal parts calcium and oxygen.
Meaning relationships
Synonyms: sourstuff, E948[packaging gas]]>
Antonyms: none provided
Broader terms: chalcogen, element
2
noun
Meaning 2
Molecular oxygen (O2), a colorless, odorless gas at room temperature.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Qualifier: loose but very common; even in formal use; loose but very common; even in formal use
Examples
Meronym: oxygen (strict sense)
About 21% of the air you breathe is oxygen.
Meaning relationships
Synonyms: dioxygen, mul:O2
Antonyms: none provided
3
noun
Meaning 3
A mixture of oxygen and other gases, administered to a patient to help them breathe.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: medicine, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
An atom of this element.
Definition source: English Wiktionary via Wiktextract
Usage: countable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
noun
Meaning 5
A condition or environment in which something can thrive.
Definition source: English Wiktionary via Wiktextract
Usage: countable, figuratively, uncountable
Examples
Silence is the oxygen of shame.
They hoped to starve the terrorists of the oxygen of publicity.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
noun
Meaning 6
a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: O, atomic number 8
Antonyms: none provided
Broader terms: chemical element, element, gas
Narrower terms: liquid oxygen, LOX
History
Etymology
Etymology tree Proto-Indo-European *h2eḱ-der.? Ancient Greek ὀξύς (oxús) Proto-Indo-European *ǵenh1- Proto-Indo-European *-os Proto-Indo-European *ǵénh1os Proto-Hellenic *génos Ancient Greek γένος (génos) French oxygènebor. English oxygen Borrowed from French oxygène (originally in the form principe oxygène, a variant of principe oxigine ‘acidifying principle’, suggested by Lavoisier), from Ancient Greek ὀξύς (oxús, “sharp”) + γένος (génos, “birth”), referring to oxygen's supposed role in the formation of acids. By surface analysis, oxy- + -gen.
Across languages
Translations
243 source translations are retained for this English entry.
Abkhaz:
аҵәыҵәри
(acwʼəcwʼri)
— chemical element
Afrikaans:
suurstof
— chemical element
Albanian:
oksigjen
— chemical element
Amharic:
ኦክሲጅን
(ʾoksiǧn)
— chemical element
Arabic:
أُكْسِجِين
(ʔuksijīn)
— chemical element
Arabic:
أكسجين
(ʔuksijīn, ʔuksujīn)
— chemical element
Aragonese:
ocsichén
— chemical element
Armenian:
թթվածին
(tʻtʻvacin)
— chemical element
Assamese:
অম্লজান
(omlozan)
— chemical element
Asturian:
oxíxenu
— chemical element
Azerbaijani:
مولدالحموضه
(muvallidulhumuze)
— chemical element
Azerbaijani:
oksigen
— chemical element
Azerbaijani:
müvəllidülhümuzə
— chemical element
Basque:
oxigenoa
— chemical element
Belarusian:
кісларо́д
(kislaród)
— chemical element
Belarusian:
тлен
(tlen)
— chemical element
Bengali:
অম্লজান
(omlojan)
— chemical element
Bengali:
অক্সিজেন
(okśijen)
— chemical element
Breton:
oksigen
— chemical element
Bulgarian:
кислоро́д
(kisloród)
— chemical element
Burmese:
အောက်ဆီဂျင်
(aukhcigyang)
— chemical element
Buryat:
хүшэлтүрэгшэ
(xüšeltüregše)
— chemical element
Catalan:
oxigen
— chemical element
Chinese Cantonese:
氧
(joeng5)
— chemical element
Hakka Chinese:
氧
(yông, yòng)
— chemical element
Chinese:
酸素
(sng-sò͘, sàng-sò͘)
— chemical element
Chinese:
氧
(ióng)
— chemical element
Chinese Mandarin:
氧
(yǎng)
— chemical element
Chuvash:
йӳҫлӗк
(jüślĕk)
— chemical element
Cornish:
oksyjen
— chemical element
Corsican:
ossigenu
— chemical element
Czech:
kyslík
— chemical element
Danish:
ilt
— chemical element
Danish:
oxygen
— chemical element
Dutch:
zuurstof
— chemical element
Dzongkha:
སྲོག་རླུང
(srog rlung)
— chemical element
Erzya:
чапамо чачтый
(čapamo čačtïj)
— chemical element
Esperanto:
oksigeno
— chemical element
Estonian:
hapnik
— chemical element
Ewe:
àgbèyà
— chemical element
Farefare:
mi'ige-walʋm
— chemical element
Faroese:
súrevni
— chemical element
Faroese:
ilt
— chemical element
Finnish:
happi
— chemical element
French:
oxygène
— chemical element
North Frisian:
sörstuf
— chemical element
West-Frisian:
soerstof
— chemical element
Friulian:
ossigjen
— chemical element
Galician:
osíxeno
— chemical element
Georgian:
ჟანგბადი
(žangbadi)
— chemical element
German:
Sauerstoff
— chemical element
German:
Oxygen
— chemical element
German:
Oxygenium
— chemical element
German:
Sauerstoff
— chemical element
Bavarian German:
Sauastoff
— chemical element
Central Franconian:
Sauerstoff
— chemical element
Greek:
οξυγόνο
(oxygóno)
— chemical element
Greenlandic:
ilti
— chemical element
Gujarati:
પ્રાણવાયુ
(prāṇvāyu)
— chemical element
Haitian Creole:
oksijèn
— chemical element
Hawaiian:
ʻokikene
— chemical element
Hebrew:
חַמְצָן
(khamtsan)
— chemical element
Hindi:
जारक
(jārak)
— chemical element
Hindi:
ऑक्सीजन
(ŏksījan)
— chemical element
Hindi:
प्राणवायु
(prāṇvāyu)
— chemical element
Hindi:
आक्सीजन
(āksījan)
— chemical element
Hungarian:
oxigén
— chemical element
Hungarian:
éleny
— chemical element
Hungarian:
savító
— chemical element
Icelandic:
súrefni
— chemical element
Ido:
oxo
— chemical element
Ido:
oxigeno
— chemical element
Indonesian:
oksigen
— chemical element
Indonesian:
zat asam
— chemical element
Indonesian:
zat pembakar
— chemical element
Ingrian:
kisloroda
— chemical element
Interlingua:
oxygeno
— chemical element
Irish:
ocsaigin
— chemical element
Irish:
aer-beatha
— chemical element
Italian:
ossigeno
— chemical element
Japanese:
酸素
(sanso)
— chemical element
Javanese:
oksigen
— chemical element
Javanese:
zat asam
— chemical element
Kalmyk:
күчлтөр
(küçltör)
— chemical element
Kannada:
ಆಮ್ಲಜನಕ
(āmlajanaka)
— chemical element
Kapampangan:
oxygen
— chemical element
Kashubian:
krziseń
— chemical element
Kazakh:
оттек
(ottek)
— chemical element
Kazakh:
оттегі
(ottegı)
— chemical element
Khmer:
អុកស៊ីហ្សែន
(oksiizaen)
— chemical element
Komi-Permyak:
шöмувтыр
(šömuvtyr)
— chemical element
Komi-Zyrian:
шомвачужысь
(šomvaćužyś)
— chemical element
Korean:
산소
(sanso)
— chemical element
Northern Kurdish:
oksîjen
— chemical element
Kyrgyz:
кычкылтек
(kıckıltek)
— chemical element
Lao:
ອົກຊີແຊນ
(ʼok sī sǣn)
— chemical element
Latgalian:
skuobeklis
— chemical element
Latin:
oxygenium
— chemical element
Latvian:
skābeklis
— chemical element
Ligurian:
oscigeno
— chemical element
Limburgish:
zuurstof
— chemical element
Lingala:
oksijɛ́ní
— chemical element
Lithuanian:
deguonis
— chemical element
Low German:
Suerstoff
— chemical element
Luxembourgish:
Sauerstoff
— chemical element
Macedonian:
кислород
(kislorod)
— chemical element
Malay:
oksigen
— chemical element
Malay:
zat pembakar
— chemical element
Malayalam:
അമ്ലജനകം
(amlajanakaṁ)
— chemical element
Malayalam:
ഓക്സിജൻ
(ōksijaṉ)
— chemical element
Malayalam:
ജീവവായു
(jīvavāyu)
— chemical element
Malayalam:
പ്രാണവായു
(prāṇavāyu)
— chemical element
Maltese:
ossiġenu
— chemical element
Manx:
ocsygien
— chemical element
Māori:
hāora
— chemical element
Marathi:
प्राणवायू
(prāṇvāyū)
— chemical element
Eastern Mari:
шопештыш
(šopeštyš)
— chemical element
Marshallese:
akjijen
— chemical element
Central Melanau:
oksijen
— chemical element
Moksha:
шапам
(šapam)
— chemical element
Mongolian:
хүчилтөрөгч
(xüčiltörögč)
— chemical element
Navajo:
níłchʼi yáʼátʼéehii
— chemical element
Newar:
अक्सिजन
(aksijana)
— chemical element
Norwegian Bokmål:
oksygen
— chemical element
Norwegian Bokmål:
surstoff
— chemical element
Norwegian Nynorsk:
nøre
— chemical element
Norwegian Nynorsk:
oksygen
— chemical element
Norwegian Nynorsk:
surstoff
— chemical element
Occitan:
oxigèn
— chemical element
Odia:
ଅମ୍ଳଜାନ
(amḷajāna)
— chemical element
Oromo:
oxygen
— chemical element
Ossetian:
туаггуыр
— chemical element
Papiamentu:
zürstòf
— chemical element
Papiamentu:
oxigeno
— chemical element
Pashto:
اکسيجن
(oksiǰán)
— chemical element
Persian:
اکسیژن
(oksižen)
— chemical element
Polish:
tlen
— chemical element
Brazilian Portuguese:
oxigênio
— chemical element
European Portuguese:
oxigénio
— chemical element
Punjabi:
ਆਕਸੀਜਨ
(ākasījan)
— chemical element
Quechua:
muksichaq
— chemical element
Romagnol:
usìgen
— chemical element
Romanian:
oxigen
— chemical element
Russian:
кислоро́д
(kisloród)
— chemical element
Samogitian:
degounis
— chemical element
Sanskrit:
अम्लकर
(amlakara)
— chemical element
Santali:
ᱚᱠᱥᱤᱡᱮᱱ
(ôksijen)
— chemical element
Scottish Gaelic:
ogsaidean
— chemical element
Serbo-Croatian:
кисео̀нӣк
— chemical element
Serbo-Croatian:
кѝсӣк
— chemical element
Serbo-Croatian:
kiseònīk
— chemical element
Serbo-Croatian:
kìsīk
— chemical element
Shan:
ဢွၵ်ႉသီႇၵျိၼ်ႇ
(ʼâ̰uk sìi kjìn)
— chemical element
Sicilian:
ossìgginu
— chemical element
Sinhalese:
අම්ලකර
(amlakara)
— chemical element
Slovak:
kyslík
— chemical element
Slovene:
kisik
— chemical element
Upper Sorbian:
kislik
— chemical element
Spanish:
oxígeno
— chemical element
Sranan Tongo:
swaskotriki
— chemical element
Sundanese:
oksigén
— chemical element
Swahili:
oksijeni
— chemical element
Swazi:
umoyakuphila
— chemical element
Swedish:
syre
— chemical element
Swedish:
oxygen
— chemical element
Tagalog:
oksiheno
— chemical element
Tajik:
оксиген
(oksigen)
— chemical element
Tamil:
உயிர்வளி
(uyirvaḷi)
— chemical element
Tamil:
உயிரியம்
(uyiriyam)
— chemical element
Tamil:
ஆக்சிசன்
(ākcicaṉ)
— chemical element
Tamil:
ஆக்சிஜன்
(ākcijaṉ)
— chemical element
Telugu:
ఆమ్లజని
(āmlajani)
— chemical element
Telugu:
ఆక్సిజను
(āksijanu)
— chemical element
Thai:
ออกซิเจน
(ɔ́k-sí-jeen)
— chemical element
Tibetan:
སྲོག་འཛིན་རླུང Literally
(srog 'dzin rlung)
— chemical element
Tibetan:
“life-supporting air”
— chemical element
Tibetan:
སྲོག་རླུང
(srog rlung)
— chemical element
Tibetan:
འཚོ་རླུང Literally
('tsho rlung)
— chemical element
Tibetan:
“life-air”
— chemical element
Tibetan:
འཚོ་དབུགས Literally
('tsho dbugs)
— chemical element
Tibetan:
“life-breath”
— chemical element
Tsonga:
moya-tenga
— chemical element
Turkish:
oksijen
— chemical element
Turkish:
müvellidülhumuza
— chemical element
Turkmen:
kislorod
— chemical element
Ukrainian:
ки́сень
(kýsenʹ)
— chemical element
Ukrainian:
оксиге́н
(oksyhén)
— chemical element
Urdu:
آکسیجن
(āksījan)
— chemical element
Urdu:
نَسِیم
(nasīm)
— chemical element
Uyghur:
ئوكسىگېن
(oksigën)
— chemical element
Uzbek:
kislorod
— chemical element
Uzbek:
кислород
(kislorod)
— chemical element
Venda:
gesedungi
— chemical element
Veps:
hapanik
— chemical element
Vietnamese:
ôxy
— chemical element
Vietnamese:
dưỡng khí
— chemical element
Volapük:
loxin
— chemical element
Welsh:
ocsigen
— chemical element
Welsh:
ufelai
— chemical element
Xhosa:
umongomoya
— chemical element
Yiddish:
זויערשטאָף
(zoyershtof)
— chemical element