peck vs pecker

peck and pecker both are nouns.

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

peck (noun)	pecker (noun)
a light kiss	bird with strong claws and a stiff tail adapted for climbing and a hard chisel-like bill for boring into wood for insects
bite by a bird	horny projecting mouth of a bird
(often followed by `of') a large number or amount or extent	obscene terms for penis
a United States dry measure equal to 8 quarts or 537.605 cubic inches
a British imperial capacity measure (liquid or dry) equal to 2 gallons

peck (verb)	pecker (verb)
bother persistently with trivial complaints
eat by pecking at, like a bird
eat like a bird
kiss lightly
hit lightly with a picking motion