ambush vs bushwhack

ambush is a noun but bushwhack is not a noun.

Word	Noun	Adjective	Verb	Adverb
ambush	Yes	No	Yes	No
bushwhack	No	No	Yes	No

As verbs, ambush and bushwhack are synonyms defined as:

Other synonyms of ambush include ambuscade, lie in wait, lurk, scupper, waylay.

ambush (noun)	bushwhack (noun)
the act of concealing yourself and lying in wait to attack by surprise

ambush (verb)	bushwhack (verb)
wait in hiding to attack	wait in hiding to attack
hunt (quarry) by stalking and ambushing	cut one's way through the woods or bush
	live in the bush as a fugitive or as a guerilla