crested vs beast

crested is not a noun while beast is a noun.

Word	Noun	Adjective	Verb	Adverb
crested	No	Yes	No	No
beast	Yes	No	No	No

crested (noun)	beast (noun)
	a living organism characterized by voluntary movement
	a cruelly rapacious person

crested (adjective)	beast (adjective)
(of a knight's helmet) having a decorative plume
(of a bird or animal) having a usually ornamental tuft or process on the head; often used in combination
bearing an heraldic device