wild dog vs canid

wild dog and canid both are nouns.

Word	Noun	Adjective	Verb	Adverb
wild dog	Yes	No	No	No
canid	Yes	No	No	No

As nouns, canid is a hypernym of wild dog; that is, canid is a word with a broader meaning than wild dog:

wild dog: any of various undomesticated mammals of the family Canidae that are thought to resemble domestic dogs as distinguished from jackals or wolves
canid: any of various fissiped mammals with nonretractile claws and typically long muzzles

Other hypernyms of wild dog include canine.

wild dog (noun)	canid (noun)
any of various undomesticated mammals of the family Canidae that are thought to resemble domestic dogs as distinguished from jackals or wolves	any of various fissiped mammals with nonretractile claws and typically long muzzles