gripe vs bitch

gripe and bitch both are nouns.

Word	Noun	Adjective	Verb	Adverb
gripe	Yes	No	Yes	No
bitch	Yes	No	Yes	No

As nouns, gripe and bitch are synonyms defined as:

Other synonyms of gripe include beef, kick, squawk.

As verbs, gripe and bitch are synonyms defined as:

Other synonyms of gripe include beef, bellyache, crab, grouse, holler, squawk.

gripe (noun)	bitch (noun)
informal terms for objecting	female of any member of the dog family
	informal terms for objecting
	a person (usually but not necessarily a woman) who is thoroughly disliked
	an unpleasant difficulty

gripe (verb)	bitch (verb)
complain	say mean things
	complain