pecker vs cere

pecker and cere both are nouns.

Word	Noun	Adjective	Verb	Adverb
pecker	Yes	No	No	No
cere	Yes	No	Yes	No

As nouns, cere is a hyponym of pecker; that is, cere is a word with a more specific, narrower meaning than pecker:

pecker (noun)	cere (noun)
bird with strong claws and a stiff tail adapted for climbing and a hard chisel-like bill for boring into wood for insects	the fleshy, waxy covering at the base of the upper beak of some birds
horny projecting mouth of a bird
obscene terms for penis

pecker (verb)	cere (verb)
	wrap up in a cerecloth