crawdad vs crawdaddy

crawdad and crawdaddy both are nouns.

Word	Noun	Adjective	Verb	Adverb
crawdad	Yes	No	No	No
crawdaddy	Yes	No	No	No

As nouns, crawdad and crawdaddy are synonyms defined as:

crawdad and crawdaddy: small freshwater decapod crustacean that resembles a lobster

Other synonyms of crawdad include crawfish, crayfish.

crawdad (noun)	crawdaddy (noun)
small freshwater decapod crustacean that resembles a lobster	small freshwater decapod crustacean that resembles a lobster
tiny lobster-like crustaceans usually boiled briefly