3 syllables: As, sump, tion. Stress on sump.
uh-SUHMP-shuhn
/əˈsʌmpʃən/
Assumption is pronounced uh-SUHMP-shuhn (/əˈsʌmpʃən/). It has three syllables (As-sump-tion), with the stress on "sump". Assumption is a noun referring to something accepted as true or certain without proof, or a supposition formed in advance. It often implies a presumption used as the basis for argument or action. In everyday language, it can denote an assumption someone makes about another person or a theoretical premise underlying a conclusion.
nounAssumption is a noun referring to something accepted as true or certain without proof, or a supposition formed in advance. It often implies a presumption used as the basis for argument or action. In everyday language, it can denote an assumption someone makes about another person or a theoretical premise underlying a conclusion.
How to Pronounce Assumption
"I made an assumption about his availability that turned out to be wrong."
"Her assumption of responsibility helped the team move forward smoothly."
"The science paper rests on an assumption that the data are normally distributed."
Say uh-SUMP-shun with primary stress on the second syllable. IPA US/UK/AU: əˈsʌmp.ʃən. The first syllable is a weak schwa, the second is a stressed “sump” with the /ʌ/ as in 'strut', followed by /m/ and the /ʃən/ ending. Tip: keep the /m/ immediately before the /p/ to avoid an extra vowel between them; the sequence is /mp/ in that slot. If you’re listening, you’ll hear a tight but short /ə/ before the stressed syllable, then the clear /sʌmp/ cluster. Practice with slow tempo, then natural tempo in context.
Common errors: (1) Misplacing the stress, saying a-SUM-ption or as-sump-tion. (2) Slurring the /mp/ into a simple /m/ or separating /mp/ with an extra vowel. (3) Mispronouncing the /ʌ/ as /ɒ/ or /æ/. Corrections: emphasize the second syllable with a clean /ʌ/; keep /mp/ together without an audible vowel between /m/ and /p/; produce /ʌ/ as in ‘cup’, then release into /m/ and /ʃən/ smoothly.
In US/UK/AU, the vowel in /ʌ/ is similar, but rhoticity affects surrounding vowels: US rhotics may slightly color the /ə/ before the /s/, while UK and AU often have a more clipped /ə/. The /r/ is not pronounced in this word, so the major variation is in the preceding schwa and the overall intonation contour. The ending /ən/ remains fairly consistent, though Australians may have a slightly broader vowel in some speakers. Overall, stress placement remains consistent on the second syllable across three accents.
Two main factors: the consonant cluster /mp/ can be tricky to compress quickly into one syllable without a vowel between /m/ and /p/, and the short /ʌ/ vowel can be unstable when spoken rapidly, especially for non-native speakers. The initial weak vowel before the stressed syllable also challenges articulation of subtle /ə/ vs /ɪ/ in connected speech. Focusing on the /mp/ cluster and keeping the vowel short and clear helps maintain accuracy.
The pronunciation emphasizes the second syllable, and the word often blends in fluent speech with a reduced first syllable. A subtle but important nuance is maintaining the tight /mp/ sequence before the /ʃən/ ending, so you don’t insert extra vocalic color between /m/ and /p/. Also, avoid turning the ending into /ənʃən/ by delaying the /ʃ/ into a separate syllable; keep it as /ʃən/.
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Assumption comes from the Latin assumptio, from assumere meaning to take up or to undertake. The verb assumere itself is composed of ad- (toward, up) and sumere (to take). In Late Latin, assumptio referred to taking on or adopting something, such as a burden, a title, or an idea. By Middle English, the word shifted toward the sense of taking upon oneself or accepting as true a belief or proposition, often in legal, scholastic, or philosophical contexts. The modern noun retains both senses: a mental acceptance of something as true (often without full evidence) or the act of taking on a role or responsibility. The stress pattern shifted over time: early forms often placed relief on the second syllable, but the current common pronunciation emphasizes the second syllable (uh-SUMP-shun), aligning with stress patterns in English multi-syllable nouns formed with a short, unstressed initial syllable and a stressed penultimate syllable. First known uses appear in Middle English texts, with scholarly adoption by the 16th century in discussions of logical premises and hypotheses. Over centuries, ‘assumption’ has also entered technical vocabularies in theology, probability, and philosophy, maintaining core etymological ties to “taking up” or “adopting” something as given.
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💡 These words have similar meanings to "Assumption" and can often be used interchangeably.
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Words that rhyme with "Assumption"
-ion sounds
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