assumption

B2 Topic:Philosophy & Reasoning

US /əˈsʌm(p).ʃ(ə)n/ See IPA manual

Freq #10031

Meanings

1

noun
Something you accept as true without proof.

Their plan was based on the assumption that prices would rise.
2

noun
The act of believing something is true without checking it.

Your assumption that I would agree was unwarranted.
3

noun
The act of taking on a job, role, or power.

His assumption of office coincided with the economic crisis.

Thesaurus

Synonyms

1 noun · something you accept as... supposition premise

3 noun · the act of taking on a job,... laying claim

Word family

Forms assumptions

Derived forms misassumptionnon-assumptionnonassumptionpreassumptionreassumptionself-assumptionsubassumption

Related forms assume assumptive

Appears in

Phrases (1)

See all

basic assumption
a central idea taken as true when developing an argument or plan

Adjective + noun

Etymology

From Middle English assumpcioun, from Medieval Latin assumptio (“a taking up (into heaven)”) and Latin assumptio (“a taking up, adoption, the minor proposition of a syllogism”). Doublet of assumptio; see assume.

assumpcioun Middle English assumptio Latin

View etymology graph ->

Topics

Philosophy & Reasoning Abstract Ideas

External links

# assumption

**Type:** Word
**Level:** B2
**Part of speech:** noun
**IPA (US):** /əˈsʌm(p).ʃ(ə)n/
**Frequency rank:** 10031

## Meanings
1. Something you accept as true without proof.
2. The act of believing something is true without checking it.
3. The act of taking on a job, role, or power.

## Examples
- Their plan was based on the assumption that prices would rise.
- Your assumption that I would agree was unwarranted.
- His assumption of office coincided with the economic crisis.

## Derived Forms
- misassumption
- non-assumption
- nonassumption
- preassumption
- reassumption
- self-assumption
- subassumption

## Related Forms
- assume
- assumptive

## Roots and Affixes
- Root: assumpcioun
- Root: assumptio

## Etymology
From Middle English assumpcioun, from Medieval Latin assumptio (“a taking up (into heaven)”) and Latin assumptio (“a taking up, adoption, the minor proposition of a syllogism”). Doublet of assumptio; see assume.

## AI Etymology
Assumption comes from Middle English assumpcioun, from Medieval Latin assumptio (“a taking up (into heaven)”) and Latin assumptio (“a taking up, adoption, the minor proposition of a syllogism”). Doublet of assumptio; see assume.

## Topics
- Philosophy & Reasoning
- Abstract Ideas

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