Definition of "affirm"

affirm

/əˈfɝm/

verb
third-person singular simple present affirms, present participle affirming, simple past and past participle affirmed
1. To agree, verify or concur; to answer positively.
2. To assert positively; to tell with confidence; to aver; to maintain as true.
  Quotations
  Jesus, […] whom Paul affirmed to be alive
  1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], Acts 25:19
3. To support or encourage.
  Quotations
  Kate pointed out that these similarities between the various accounts of parents with trans children attracts criticism from those commentators who argue that trans children do not exist or should not be affirmed in their gender.
  August 24 2021, Shon Faye, “‘I feel like it’s quite shaky acceptance’: trans kids and the fight for inclusion”, in The Guardian
4. (law) to assert or confirm, as a judgment, decree, or order, brought before an appellate court for review.
5. (law) To state under a solemn promise to tell the truth which is considered legally equivalent to an oath, especially of those who have religious or other moral objections to swearing oaths; also solemnly affirm.