assertion
noun OPAL W
  /əˈsɜːʃn/
  /əˈsɜːrʃn/
- [countable] a statement saying that you strongly believe something to be true synonym claim- He was correct in his assertion that the minister had been lying.
- Do you have any evidence to support your assertions?
 Synonyms claimclaim- allegation
- assertion
 - claim a statement that something is true, although it has not been proved.
- allegation (rather formal) a public statement that is made without giving proof, accusing somebody of doing something that is wrong or illegal.
- assertion (rather formal) a statement of something that you strongly believe to be true, although it has not been proved.
 - a(n) claim/allegation/assertion that…
- a(n) claim/allegation/assertion about/of something
- false/unfounded/conflicting claims/allegations/assertions
- to make/deny a(n) claim/allegation/assertion
- to withdraw a(n) claim/allegation
 Extra ExamplesTopics Opinion and argumentc1- Your assertion is not supported by the facts.
- Researchers have recently challenged these assertions.
- The argument needs to progress beyond the simple assertion that criminals are made not born.
- They made sweeping assertions about the role of women in society.
 Oxford Collocations Dictionaryadjective- bold
- confident
- strong
- …
 - make
- justify
- prove
- …
 - assertion about
 
- [uncountable, countable] the act of stating, using or claiming something strongly- the assertion of his authority
- The demonstration was an assertion of the right to peaceful protest.
 
Word Originlate Middle English: from Latin assertio(n-), from the verb asserere ‘claim, affirm’, from ad- ‘to’ + serere ‘to join’.