avower

Noun

• someone who claims to speak the truth
  • a bold asserter
    
  • a declarer of his intentions
    
  • affirmers of traditional doctrine
    
  • an asseverator of strong convictions
    
  • an avower of his own great intelligence
    

• someone who admits or acknowledges openly and boldly

Related words

• Synonyms: 
  asserter , declarer , affirmer , asseverator