peck vs kiss

peck and kiss both are nouns.

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

As nouns, kiss is a hypernym of peck; that is, kiss is a word with a broader meaning than peck:

Other hypernyms of peck include buss, osculation.

As verbs, kiss is a hypernym of peck; that is, kiss is a word with a broader meaning than peck:

peck: kiss lightly
kiss: touch with the lips or press the lips (against someone's mouth or other body part) as an expression of love, greeting, etc.

Other hypernyms of peck include buss, osculate, snog.

peck (noun)	kiss (noun)
a light kiss	the act of caressing with the lips (or an instance thereof)
bite by a bird	a light glancing touch
(often followed by `of') a large number or amount or extent	any of several bite-sized candies
a United States dry measure equal to 8 quarts or 537.605 cubic inches	a cookie made of egg whites and sugar
a British imperial capacity measure (liquid or dry) equal to 2 gallons

peck (verb)	kiss (verb)
bother persistently with trivial complaints	touch with the lips or press the lips (against someone's mouth or other body part) as an expression of love, greeting, etc.
eat by pecking at, like a bird	touch lightly or gently
eat like a bird
kiss lightly
hit lightly with a picking motion