whip-snake vs whip snake

whip-snake and whip snake both are nouns.

Word	Noun	Adjective	Verb	Adverb
whip-snake	Yes	No	No	No
whip snake	Yes	No	No	No

As nouns, whip-snake and whip snake are synonyms defined as:

whip-snake and whip snake: any of several small fast-moving snakes with long whiplike tails

Other synonyms of whip-snake include whipsnake.

whip-snake (noun)	whip snake (noun)
any of several small fast-moving snakes with long whiplike tails	any of several small fast-moving snakes with long whiplike tails