crawfish vs back away

crawfish is a noun but back away is not a noun.

Word	Noun	Adjective	Verb	Adverb
crawfish	Yes	No	Yes	No
back away	No	No	Yes	No

As verbs, crawfish and back away are synonyms defined as:

crawfish and back away: make a retreat from an earlier commitment or activity

Other synonyms of crawfish include back out, crawfish out, pull back, pull in one's horns, retreat, withdraw.

crawfish (noun)	back away (noun)
large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters
small freshwater decapod crustacean that resembles a lobster
tiny lobster-like crustaceans usually boiled briefly

crawfish (verb)	back away (verb)
make a retreat from an earlier commitment or activity	make a retreat from an earlier commitment or activity