peck vs chomp

peck and chomp both are nouns.

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

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

Other hypernyms of peck include bite.

peck (noun)	chomp (noun)
a light kiss	the act of gripping or chewing off with the teeth and jaws
bite by a bird
(often followed by `of') a large number or amount or extent
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)	chomp (verb)
bother persistently with trivial complaints	chew noisily or vigorously
eat by pecking at, like a bird
eat like a bird
kiss lightly
hit lightly with a picking motion