Assume

/əˈsuːm/

Meaning & Definition

verb
To take for granted or without proof; to suppose.
I assume you will attend the meeting tomorrow.
To take on a position, responsibility, or duty.
She will assume the role of team leader starting next week.
To take up or begin to have.
He assumed a defensive posture when he saw the dog.
To accept something as true without verification.
We can assume that the project will be completed on time based on past performance.

Etymology

Middle English: from Latin assumere, from ad- 'to' + sumere 'to take'.

Common Phrases and Expressions

assume responsibility
to take charge or accept accountability for something.
assume the worst
to believe that the most negative or pessimistic outcome will occur.
assume a position
to take up a specific role or stance.

Related Words

presume
to suppose something is true based on probability.
postulate
to suggest or assume the existence or truth of something as a basis for reasoning.
presumption
an idea that is taken to be true.

Slang Meanings

to make a guess about something
Don't assume I'll be free; just ask first.
to take something for granted
You can't just assume he's coming to the party.