pecker vs neb

pecker and neb both are nouns.

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

As nouns, pecker and neb are synonyms defined as:

Other synonyms of pecker include beak, bill, nib.

pecker (noun)	neb (noun)
bird with strong claws and a stiff tail adapted for climbing and a hard chisel-like bill for boring into wood for insects	horny projecting mouth of a bird
horny projecting mouth of a bird	a long projecting or anterior elongation of an animal's head; especially the nose
obscene terms for penis