Part of speech: Noun
someone who claims to speak the truth
Example: a bold asserter; a declarer of his intentions; affirmers of traditional doctrine; an asseverator of strong convictions; an avower of his own great intelligence
Part of speech: Noun
the bridge player in contract bridge who wins the bidding and can declare which suit is to be trumps
Asserter, Affirmer, Asseverator, Contractor, Declarer