suppose

verb

sup·​pose sə-ˈpōz 

 usually after "I"  ˈspōz

supposed; supposing

transitive verb

1

a

: to lay down tentatively as a hypothesis, assumption, or proposal

suppose a fire broke out

suppose you bring the salad

b(1)

: to hold as an opinion : believe

they supposed they were early

(2)

: to think probable or in keeping with the facts

seems reasonable to suppose that he would profit

2

a

: conceive, imagine

b

: to have a suspicion of

3

: presuppose

intransitive verb

: conjecture, opine

Synonyms

• calculate
• call
• conjecture
• estimate
• figure
• gauge
• gage
• guess
• judge
• make
• place
• put
• reckon

Examples of suppose in a Sentence

Suppose a fire broke out. How would we escape?

Just suppose for a moment that you agreed with me.

Supposing he refuses to help, what do we do then?

The renovations will cost much more than we originally supposed.

Recent Examples on the Web

The stay in the beach house was supposed to clear their heads, and Joe wasn’t supposed to show up. —Sara Netzley, EW.com, 24 Apr. 2025

Social functions on campus are also supposed to end by 11.00 p.m. between Sunday and Thursday. —Ross Rosenfeld, MSNBC Newsweek, 23 Apr. 2025

That was not supposed to be this lineup, which simply has not gotten going. —Fabian Ardaya, New York Times, 23 Apr. 2025

Cass has his own problems to deal with, though: He’s supposed to rendezvous on a forested planet with someone named Porco, but his disguise as an Imperial pilot works too well, and a group of squabbling sorta-rebels mistake him for the real thing. —Jesse Hassenger, Vulture, 23 Apr. 2025

Word History

Etymology

Middle English, from Anglo-French supposer, from Medieval Latin supponere (perfect indicative supposui), from Latin, to put under, substitute, from sub- + ponere to put — more at position

First Known Use

14th century, in the meaning defined at transitive sense 1a

Phrases Containing suppose

• I don't suppose

Rhymes for suppose

• aloes
• arose
• bedclothes
• bestows
• boroughs
• buboes
• cargoes
• cocos
• compose
• crossbows
• demos
• depose

Kids Definition

suppose

verb

sup·​pose sə-ˈpōz 

supposed; supposing

1

: to take as true or as a fact for the sake of argument

suppose a fire should break out

2

: to hold as an opinion : believe

they supposed they were on the right bus

3

: to come to a conclusion arrived at by guessing

who do you suppose will win