nib vs pecker

nib and pecker both are nouns.

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

As nouns, nib and pecker are synonyms defined as:

Other synonyms of nib include beak, bill, neb.

nib (noun)	pecker (noun)
horny projecting mouth of a bird	bird with strong claws and a stiff tail adapted for climbing and a hard chisel-like bill for boring into wood for insects
the writing point of a pen	horny projecting mouth of a bird
	obscene terms for penis