bitch vs dirty word

bitch and dirty word both are nouns.

Word	Noun	Adjective	Verb	Adverb
bitch	Yes	No	Yes	No
dirty word	Yes	No	No	No

bitch (noun)	dirty word (noun)
female of any member of the dog family	an offensive or indecent word or phrase
informal terms for objecting	a word that is considered to be unmentionable
a person (usually but not necessarily a woman) who is thoroughly disliked
an unpleasant difficulty

bitch (verb)	dirty word (verb)
say mean things
complain