Assume and presume both mean "to take something for granted" or "to take something as true," but the words differ in the degree of confidence the person assuming or presuming has.

ASSUME definition: 1. to accept something to be true without question or proof: 2. to pretend to have a different…. Learn more.

If you assume that something is true, you imagine that it is true, sometimes wrongly. It is a misconception to assume that the two continents are similar. [VERB that] If the package is wrapped …

1. to take for granted or without proof; suppose; postulate; posit. 2. to take upon oneself; undertake or accept: to assume responsibility.

Definition of assume verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

to take upon oneself; undertake or take on or over (a position, responsibility, etc): to assume office to pretend to; feign: he assumed indifference, although the news affected him deeply to take or put on; …

ASSUME definition: to take for granted or without proof. See examples of assume used in a sentence.

Jan 20, 2026 · To take on a position, duty or form. Mr. Jones will assume the position of a lifeguard until a proper replacement is found.

Generally used when someone has a firm opinion or conviction about something, often without needing proof. It conveys personal conviction and trust. I believe that honesty is the best policy. She believes …

Assume and presume both mean to believe something before it happens, but when you assume you're not really sure. If someone bangs on your door in the middle of the night, you might assume it's your …