Date: 1500-1600
Language: Latin
Origin: assumere, from ad- 'to' + sumere 'to take'


as‧sume S1 W1 [transitive]
1 to think that something is true, although you do not have definite proof [= presume]
assume (that)
I didn't see your car, so I assumed you'd gone out.
it is/seems reasonable to assume (that)
It seems reasonable to assume that the book was written around 70 AD.
I think we can safely assume (=it is almost certain) that interest rates will go up again soon.
let us/let's assume (that) (=used when thinking about a possible event or situation and its possible results)
Let us assume for a moment that we could indeed fire her. Should we?
When it got to midnight and Paul was still not back, I began to assume the worst (=think that the worst possible thing had happened).

assume control/responsibility etc

formal to start to have control, responsibility etc or to start in a particular position or job:
Whoever they appoint will assume responsibility for all financial matters.
He assumed power in a bloody coup in 1990.
Jim Paton will assume the role of managing director.

assume a manner/air/expression etc

formal to behave in a way that does not show how you really feel, especially in order to seem more confident, happy etc than you are [= put on]:
Andy assumed an air of indifference whenever her name was mentioned.
4 to start to have a particular quality or appearance [= take on]:
These relationships assume great importance in times of crisis.
The problem is beginning to assume massive proportions.
5 to be based on the idea that something else is correct [= presuppose]
assume (that)
The theory assumes that both labour and capital are mobile.
Coen's economic forecast assumes a 3.5% growth rate.

Dictionary results for "assume"
Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.