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 of suppose

• estimate
• guess
• calculate
• figure
• make
• reckon
• put
• gauge

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

In my experience, the story is a gap between the people who built the system, the wildly diverse customers it’s supposed to serve and legacy infrastructure that was not designed for a diverse region like Asia Pacific (APAC). — Wendy Johnstone, Forbes.com, 29 Sep. 2026

It wasn’t supposed to be this way for the Royals, who were coming off consecutive winning seasons. — Blair Kerkhoff, Kansas City Star, 29 Sep. 2026

The original was never supposed to be a collector's trophy or some six-figure garage queen. — New Atlas, 29 Sep. 2026

And, of course, you’re not supposed to smoke on TV, but everyone decided to smoke on TV last night. — Shirley Halperin, Rolling Stone, 28 Sep. 2026

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
• bestows
• boroughs
• buboes
• cargoes
• cocos
• compos
• 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