Definition of assumption in English:

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Pronunciation: /əˈsəm(p)SH(ə)n/


1A thing that is accepted as true or as certain to happen, without proof: they made certain assumptions about the market [with clause]: we’re working on the assumption that the time of death was after midnight
More example sentences
  • Unless all of these assumptions are true, mass surveillance would be of very little help.
  • These rules are complicated and couples in divorce proceedings should make no assumptions.
  • Perhaps you should question your own assumptions about that before you go poking about in mine.
2The action of taking or beginning to take power or responsibility: the assumption of an active role in regional settlements
More example sentences
  • The judiciary was badly split by the military's May 29 assumption of executive power.
  • Others welcomed Hitler's assumption of power, seeing in it a chance to advance their own careers.
  • There are a number of references in the speeches in this case to voluntary assumption of responsibility.
seizure, arrogation, appropriation, expropriation, commandeering, confiscation, hijacking, wresting
acceptance, shouldering, tackling, undertaking
3 (Assumption) The reception of the Virgin Mary bodily into heaven. This was formally declared a doctrine of the Roman Catholic Church in 1950. See also Dormition.
Example sentences
  • His Requiem Mass was celebrated in the Church of the Assumption of the Blessed Virgin Mary.
  • The Virgin birth, the bodily Assumption of the Blessed Virgin Mary, the Resurrection of Jesus, the survival of our own souls after death: these are all claims of a clearly scientific nature.
  • Pope Pius XII infallibly proclaimed the doctrine of the Assumption of the Blessed Virgin Mary on 1 November 1950.
3.1The feast in honor of this, celebrated on August 15.
Example sentences
  • The Feast of the Assumption was celebrated with prayers at the Marian Shrine in the village last Sunday after 10.00 am mass.
  • Since the opening ceremonies on the Feast of the Assumption, August 15, there has been a steady flow of people, both young and old, arriving in Ladywell to pray at the Shrine and sip water from the Holy Well.
  • The date was August 15, 1975, the Feast of the Assumption.
4 archaic Arrogance or presumption.


Middle English (sense 3): from Old French asompsion or Latin assumptio(n-), from the verb assumere (see assume).

Words that rhyme with assumption

consumption, gumption, overconsumption, presumption

For editors and proofreaders

Syllabification: as·sump·tion

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