heraldry vs crest

heraldry and crest both are nouns.

Word	Noun	Adjective	Verb	Adverb
heraldry	Yes	No	No	No
crest	Yes	No	Yes	No

heraldry (noun)	crest (noun)
emblem indicating the right of a person to bear arms	a showy growth of e.g. feathers or skin on the head of a bird or other animal
the study and classification of armorial bearings and the tracing of genealogies	(heraldry) in medieval times, an emblem used to decorate a helmet
	the center of a cambered road
	the top line of a hill, mountain, or wave
	the top or extreme point of something (usually a mountain or hill)

heraldry (verb)	crest (verb)
	reach a high point
	lie at the top of