Standard Lemma guide

acceleration

noun · 7 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • əksĕlərā'shən
  • /əkˌsɛl.əˈɹeɪ.ʃən/
  • /ækˌsɛl.əˈɹeɪ.ʃən/
  • /ɪkˌsɛl.əˈɹeɪ.ʃən/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -eɪʃən
  • CMU ARPABET: AE2 K S EH2 L ER0 EY1 SH AH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Examples

  • A falling body moves toward the earth with an acceleration of velocity.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The amount by which a speed or velocity increases (and so a scalar quantity or a vector quantity).

Definition source: English Wiktionary via Wiktextract

Usage: countable

Examples

  • The boosters produce an acceleration of 20 metres per second per second.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

The change of velocity with respect to time (can include deceleration or changing direction).

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

The advancement of students at a rate that places them ahead of where they would be in the regular school curriculum.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

the act of accelerating; increasing the speed

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: quickening, speedup

Antonyms: deceleration

Broader terms: speed, speeding, hurrying

6

noun

Meaning 6

an increase in rate of change

Definition source: Princeton WordNet 3.0

Examples

  • modern science caused an acceleration of cultural change

Meaning relationships

Synonyms: none provided

Antonyms: deceleration

Broader terms: change, alteration, modification

Narrower terms: pickup, getaway, precipitation

7

noun

Meaning 7

(physics) a rate of increase of velocity

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: deceleration

Broader terms: rate

Narrower terms: angular acceleration, centripetal acceleration

History

Etymology

Etymology tree Proto-Indo-European *h2éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *kel-der. Latin celer Proto-Indo-European *-h2 Proto-Indo-European *-éh2 Proto-Indo-European *-yéti Proto-Indo-European *-eh2yéti Proto-Indo-European *-h2tiinflu. Proto-Italic *-ājō Proto-Italic *-āō Latin -ō Latin celerō Latin accelerō Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin accelerātiōder. English acceleration First attested in 1531. From French accélération or more likely directly from Latin accelerātiō (“a hastening, acceleration”). Equivalent to accelerate + -ion.

Across languages

Translations

169 source translations are retained for this English entry.

  • Armenian: արագացում (aragacʻum) — act or state
  • Belarusian: паскарэ́нне (paskarénnje) — act or state
  • Bulgarian: ускоря́ване (uskorjávane) — act or state
  • Bulgarian: акселера́ция (akselerácija) — act or state
  • Bulgarian: ускоре́ние (uskorénie) — act or state
  • Catalan: acceleració — act or state
  • Chinese Mandarin: 加速 (jiāsù) — act or state
  • Czech: zrychlení — act or state
  • Danish: acceleration — act or state
  • Dutch: versnelling — act or state
  • Dutch: acceleratie — act or state
  • Esperanto: akcelo — act or state
  • Finnish: kiihdytys — act or state
  • French: accélération — act or state
  • Galician: aceleración — act or state
  • German: Beschleunigung — act or state
  • German: Akzeleration — act or state
  • Greek: επιτάχυνση (epitáchynsi) — act or state
  • Hebrew: האצה (he'atza) — act or state
  • Hungarian: gyorsulás — act or state
  • Interlingua: acceleration — act or state
  • Italian: accelerazione — act or state
  • Japanese: 加速 (kasoku) — act or state
  • Korean: 가속 (gasok) — act or state
  • Latin: accelerātiō — act or state
  • Lithuanian: pagreitis — act or state
  • Luxembourgish: Acceleratioun — act or state
  • Macedonian: забрзување (zabrzuvanje) — act or state
  • Malayalam: ത്വരണം (tvaraṇaṁ) — act or state
  • Norwegian Bokmål: akselerasjon — act or state
  • Norwegian Nynorsk: akselerasjon — act or state
  • Persian: شتاب (šetâb) — act or state
  • Middle Persian: 𐭠𐭥𐭮𐭲𐭠𐭯𐭮𐭭𐭭 — act or state
  • Polish: przyspieszenie — act or state
  • Polish: akceleracja — act or state
  • Portuguese: aceleração — act or state
  • Romanian: accelerație — act or state
  • Romanian: accelerare — act or state
  • Russian: ускоре́ние (uskorénije) — act or state
  • Russian: разго́н (razgón) — act or state
  • Serbo-Croatian: akcelerácija — act or state
  • Serbo-Croatian: ubrzánje — act or state
  • Spanish: aceleración — act or state
  • Spanish: aceleramiento — act or state
  • Spanish: acceleración — act or state
  • Swahili: mchapuko — act or state
  • Swedish: acceleration — act or state
  • Tagalog: darasig — act or state
  • Ukrainian: приско́рення (pryskórennja) — act or state
  • Venetan: acelerasion — act or state
  • Armenian: արագացում (aragacʻum) — amount
  • Bulgarian: ускоре́ние (uskorénie) — amount
  • Catalan: acceleració — amount
  • Chinese Mandarin: 加速度 (jiāsùdù) — amount
  • Czech: zrychlení — amount
  • Dutch: versnelling — amount
  • Dutch: acceleratie — amount
  • Esperanto: akcelo — amount
  • Finnish: kiihtyvyys — amount
  • French: accélération — amount
  • German: Beschleunigung — amount
  • German: Akzeleration — amount
  • Greek: επιτάχυνση (epitáchynsi) — amount
  • Hebrew: תאוצה (teutza) — amount
  • Italian: accelerazione — amount
  • Japanese: 加速度 (kasokudo) — amount
  • Malay: pecutan — amount
  • Polish: przyspieszenie — amount
  • Portuguese: aceleração — amount
  • Russian: ускоре́ние (uskorénije) — amount
  • Serbo-Croatian: akcelerácija — amount
  • Serbo-Croatian: ubrzánje — amount
  • Swedish: acceleration — amount
  • Tagalog: darasig — amount
  • Afrikaans: versnelling — change of velocity with respect to time
  • Amharic: ፍጥንጥነት (fəṭnəṭnät) — change of velocity with respect to time
  • Arabic: تَسَارُع (tasāruʕ) — change of velocity with respect to time
  • Aragonese: aceleración — change of velocity with respect to time
  • Armenian: արագացում (aragacʻum) — change of velocity with respect to time
  • Assamese: ত্বৰণ (toron) — change of velocity with respect to time
  • Asturian: aceleración — change of velocity with respect to time
  • Azerbaijani: təcil — change of velocity with respect to time
  • Bashkir: тиҙләнеш (tiźləneş) — change of velocity with respect to time
  • Basque: azelerazio — change of velocity with respect to time
  • Belarusian: паскарэнне (paskarennje) — change of velocity with respect to time
  • Bengali: ত্বরণ (toron) — change of velocity with respect to time
  • Bulgarian: ускоре́ние (uskorénie) — change of velocity with respect to time
  • Burmese: အရှိန် (a.hrin) — change of velocity with respect to time
  • Catalan: acceleració — change of velocity with respect to time
  • Cebuano: pagpatulin — change of velocity with respect to time
  • Chinese Mandarin: 加速度 (jiāsùdù) — change of velocity with respect to time
  • Czech: zrychlení — change of velocity with respect to time
  • Czech: akcelerace — change of velocity with respect to time
  • Danish: acceleration — change of velocity with respect to time
  • Dutch: versnelling — change of velocity with respect to time
  • Dutch: acceleratie — change of velocity with respect to time
  • Esperanto: akcelo — change of velocity with respect to time
  • Estonian: kiirendus — change of velocity with respect to time
  • Finnish: kiihtyvyys — change of velocity with respect to time
  • French: accélération — change of velocity with respect to time
  • West-Frisian: fersnelling — change of velocity with respect to time
  • Galician: aceleración — change of velocity with respect to time
  • Georgian: აჩქარება (ačkareba) — change of velocity with respect to time
  • German: Beschleunigung — change of velocity with respect to time
  • German: Akzeleration — change of velocity with respect to time
  • Greek: επιτάχυνση (epitáchynsi) — change of velocity with respect to time
  • Haitian Creole: akselerasyon — change of velocity with respect to time
  • Hebrew: תאוצה — change of velocity with respect to time
  • Hindi: त्वरण (tvaraṇ) — change of velocity with respect to time
  • Hungarian: gyorsulás — change of velocity with respect to time
  • Icelandic: hröðun — change of velocity with respect to time
  • Indonesian: percepatan — change of velocity with respect to time
  • Indonesian: akselerasi — change of velocity with respect to time
  • Irish: luasghéarú — change of velocity with respect to time
  • Italian: accelerazione — change of velocity with respect to time
  • Japanese: 加速度 (kasokudo) — change of velocity with respect to time
  • Karachay-Balkar: терклениу (terkleniu) — change of velocity with respect to time
  • Kazakh: үдеу (üdeu) — change of velocity with respect to time
  • Khmer: សំទុះ (sɑmtuh) — change of velocity with respect to time
  • Korean: 가속도 (gasokdo) — change of velocity with respect to time
  • Latin: acceleratio — change of velocity with respect to time
  • Latvian: paātrinājums — change of velocity with respect to time
  • Lithuanian: pagreitis — change of velocity with respect to time
  • Macedonian: забрзување (zabrzuvanje) — change of velocity with respect to time
  • Malay: pemecutan — change of velocity with respect to time
  • Malayalam: ത്വരണം (tvaraṇaṁ) — change of velocity with respect to time
  • Manx: bieauaghey — change of velocity with respect to time
  • Marathi: त्वरण (tvaraṇ) — change of velocity with respect to time
  • Mongolian: хурдатгал (xurdatgal) — change of velocity with respect to time
  • Neapolitan: accëllërazion — change of velocity with respect to time
  • Nepali: प्रवेग (praveg) — change of velocity with respect to time
  • Newar: प्रवेग (prawega) — change of velocity with respect to time
  • Norwegian Bokmål: akselerasjon — change of velocity with respect to time
  • Norwegian Nynorsk: akselerasjon — change of velocity with respect to time
  • Occitan: acceleracion — change of velocity with respect to time
  • Persian: شتاب (šetâb) — change of velocity with respect to time
  • Polish: przyspieszenie — change of velocity with respect to time
  • Portuguese: aceleração — change of velocity with respect to time
  • Punjabi: ਪ੍ਰਵੇਗ (prveg) — change of velocity with respect to time
  • Romanian: accelerație — change of velocity with respect to time
  • Russian: ускоре́ние (uskorénije) — change of velocity with respect to time
  • Serbo-Croatian: akcelerácija — change of velocity with respect to time
  • Serbo-Croatian: ubrzánje — change of velocity with respect to time
  • Serbo-Croatian: акцелерација — change of velocity with respect to time
  • Sicilian: accilirazzioni — change of velocity with respect to time
  • Silesian: szwůng — change of velocity with respect to time
  • Sinhalese: ත්වරණය (twaraṇaya) — change of velocity with respect to time
  • Slovak: zrýchlenie — change of velocity with respect to time
  • Slovene: pospešek — change of velocity with respect to time
  • Spanish: aceleración — change of velocity with respect to time
  • Spanish: acceleración — change of velocity with respect to time
  • Sundanese: percepetan — change of velocity with respect to time
  • Sundanese: akselerasi — change of velocity with respect to time
  • Swedish: acceleration — change of velocity with respect to time
  • Tagalog: darasig — change of velocity with respect to time
  • Tagalog: akselerasyon — change of velocity with respect to time
  • Tamil: முடுக்கம் (muṭukkam) — change of velocity with respect to time
  • Tatar: тизләнеш (tizläneş) — change of velocity with respect to time
  • Telugu: త్వరణము (tvaraṇamu) — change of velocity with respect to time
  • Thai: ความเร่ง (kwaam-rêng) — change of velocity with respect to time
  • Turkish: ivme — change of velocity with respect to time
  • Turkish: hızlanma — change of velocity with respect to time
  • Ukrainian: прискорення (pryskorennja) — change of velocity with respect to time
  • Urdu: اسراع (israa) — change of velocity with respect to time
  • Uzbek: tezlanish — change of velocity with respect to time
  • Venetan: acelerasion — change of velocity with respect to time
  • Vietnamese: gia tốc — change of velocity with respect to time
  • Welsh: cyflymiad — change of velocity with respect to time
  • Polish: akceleracja — education
Real reading context

acceleration in complete knowledge articles