briber vs criminal

briber and criminal both are nouns.

Word	Noun	Adjective	Verb	Adverb
briber	Yes	No	No	No
criminal	Yes	Yes	No	No

As nouns, criminal is a hypernym of briber; that is, criminal is a word with a broader meaning than briber:

briber: someone who pays (or otherwise incites) you to commit a wrongful act
criminal: someone who has committed a crime or has been legally convicted of a crime

Other hypernyms of briber include crook, felon, malefactor, outlaw.

briber (noun)	criminal (noun)
someone who pays (or otherwise incites) you to commit a wrongful act	someone who has committed a crime or has been legally convicted of a crime

briber (adjective)	criminal (adjective)
	guilty of crime or serious offense
	involving or being or having the nature of a crime
	bringing or deserving severe rebuke or censure