assumption

assumption is on the Academic Word List.

Pronunciation

• IPA ^(key): /əˈsʌmp.ʃən/

• Audio (US)

  (file)

Noun

Singular assumption

Plural assumptions

Assumption is on the Academic Vocabulary List.

1. (countable) An assumption is a guess or belief about something without having enough information to know if it is true. In maths or science: something assumed to be true in order to build an argument or calculation.
   • Synonym: presumption

   You shouldn't make the assumption that guns are only a problem in big cities.

   To calculate the age of a rock we make the assumption that the rate of radioactive decay is constant.

Related words

• assume
• assumptive