Assumption Meaning

/əˈsʌm(p).ʃ(ə)n/
B2

Definition, CEFR level B2, pronunciation, examples, and quiz.

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nounThe act of assuming, or taking to or upon oneself; the act of taking up or adopting.

nounThe act of taking for granted, or supposing a thing without proof; a supposition; an unwarrantable claim.

What he said bears out my assumption.
Your assumption that his death was an accident seems to be wrong.
The underlying assumption is that the amount of money available is limited.
Synonyms:
Antonyms:
None
CEFR Practice Quiz
Her ____ that he would arrive early was proven wrong when he showed up two hours late.
CEFR Practice Quiz (Alternate)
The whole plan was built on the ____ that it would not rain today.

From Middle English assumpcioun, from Medieval Latin assūmptiō (“a taking up (into heaven)”) and Latin assūmptiō (“a taking up, adoption, the minor proposition of a syllogism”) (whence -ion), from Latin assūmō (whence as- (“assimilated form of ad-”). See also assume. Doublet of assumptio.

"No doubt a finite evaluative argument must make some unargued evaluative assumptions, just as finite factual arguments must make some unargued factual assumptions." — 1976, “The Journal of Aesthetic Education, Volume 10”, in (Please provide the book title or journal name):
"Of vvhat texte thou proveſt hell / vvill a nother prove purgatory / a nother lymbo patrum / and a nother the aſſumpcion of oure ladi: And a nother ſhall prove of the ſame texte that an Ape hath a tayle." — 1528 October 12 (Gregorian calendar), William Tyndale, “William Tyndale other wise Called William Hychins vnto the Reader”, in The Obediẽce of a Christen Man […], [Antwerp]: [Johannes Hoochstraten], →OCLC, folio xix, recto:

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CEFR Practice Quiz
Her ____ that he would arrive early was proven wrong when he showed up two hours late.
CEFR Practice Quiz (Alternate)
The whole plan was built on the ____ that it would not rain today.

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