canid vs bitch

canid and bitch both are nouns.

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

As nouns, bitch is a hyponym of canid; that is, bitch is a word with a more specific, narrower meaning than canid:

canid: any of various fissiped mammals with nonretractile claws and typically long muzzles
bitch: female of any member of the dog family

Other hyponyms of canid include Canis familiaris, dog, domestic dog, wolf, jackal, wild dog, hyaena, hyena, fox.

canid (noun)	bitch (noun)
any of various fissiped mammals with nonretractile claws and typically long muzzles	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

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