4 syllables: Ac, cel, er, ate. Stress on cel.
ak-SEL-ur-ayt
/æˈksɛlɚˌeɪt/
Accelerate is pronounced ak-SEL-ur-ayt (/æˈksɛlɚˌeɪt/). It has four syllables (Ac-cel-er-ate), with the stress on "cel". Accelerate is a verb meaning to increase speed or to cause something to move faster. It often implies a deliberate or gradual increase in velocity, rather than a sudden burst. In usage, it can describe physical motion, processes, or rates (e.g., engines, growth, or reaction times) speeding up over time.
verbAccelerate is a verb meaning to increase speed or to cause something to move faster. It often implies a deliberate or gradual increase in velocity, rather than a sudden burst. In usage, it can describe physical motion, processes, or rates (e.g., engines, growth, or reaction times) speeding up over time.
How to Pronounce Accelerate
"The car began to accelerate as it approached the hill."
"Investors hope the market will accelerate after the new policy launch."
"The project accelerated once we allocated additional resources."
Tip: place primary stress on the second syllable: ac-CEL-er-ate. Phonetic guide: US /ækˈsɛl.əˌreɪt/, UK /ækˈsel.ə.reɪt/, AU /ækˈsel.ə.reɪt/. Start with a short, open front vowel /æ/, move quickly to /ˈsɛl/ with the alveolar stop /t/ at the end, followed by a late, accented /eɪt/ diphthong. Picture the sequence: /æ/ + /ˈsɛl/ + /ə/ + /ˌreɪt/. Practicing in isolation: ac- (schwa optional in fast speech) + sel + er + ate, with clear /t/ closure at the end.
Common errors: 1) Misplacing primary stress on the first syllable (ac-CEL-er-ate should be ac-CEL; stressing 'ac' weakens the word’s natural rhythm). 2) Slurring the /ˈsɛl/ cluster into /sɛl/ or mispronouncing the final /eɪt/ as /ɛt/. 3) Dropping the final /t/ or turning it into a d-like sound in rapid speech. Correct by ensuring clear /t/ release at the end and maintaining the /eɪ/ glide before it. Practice with a slow, deliberate pace, then speed up while keeping the rhythm intact.
US: strong rhotic /r/ in sequences like /ˌreɪt/ with a clear /r/ only before syllabic vowels. UK: non-rhotic: /ˈsɛl.ə.reɪt/ with less pronounced or silent /r/ after vowels. AU: similar to US but with flatter intonation and slightly reduced vowel length in some speakers; the /ɐ/ or /ə/ may be realized subtly in connected speech. Overall, stress placement remains on the second syllable, but vowel quality and r-coloring vary by region.
The difficulty stems from the two-stage syllabic stress pattern and the final /eɪt/ diphthong, which requires a precise glide from /e/ to /ɪ/ or /ɪ/ to /eɪ/ depending on cluster, plus a crisp /t/ release. The central /ə/ between /l/ and /reɪt/ can be reduced in rapid speech, obscuring syllable boundaries. Mastery demands careful jaw and tongue coordination across four syllables and accurate stop consonant timing.
Unique aspect is the consonant cluster transition from /l/ to /ə/ to /ˈreɪt/ where you avoid an intrusive pause and ensure smooth liaison: ac-CEL-er-ate. The tricky point is maintaining the second-syllable vowel clarity /ɛ/ while keeping a light, barely aspirated /t/ at the end. Also, the potential for syllabic weakening of the middle /ə/ in fast speech makes the word susceptible to mis-stressing. IPA-focused practice helps solidify the sequence.
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Accelerate comes from the Latin accelerare, where acc- means ‘toward’ or ‘to’ and celer, celeris means ‘swift’ or ‘speed.’ The lemma evolved in Old French as accelerating, later into English as accelerate by the 15th century. Initially, the term appeared in scientific and mathematical contexts describing motion and rates of change. Over time, its domain broadened to everyday use: transportation, technology, economics, and processes, where increasing speed is desirable or necessary. The sense of instigating or causing speed gains matured alongside advances in engines, logistics, and performance optimization, making accelerate a common verb in both technical and colloquial registers. First known uses appear in translations of scientific treatises and travel records, with English attestations in the late medieval period. The modern usage emphasizes causation: to accelerate something is to apply action that increases velocity or rate, whether physical, temporal, or figurative.
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💡 These words have similar meanings to "Accelerate" and can often be used interchangeably.
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Words that rhyme with "Accelerate"
-ate sounds
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