strike dumb vs impress

strike dumb is not a noun while impress is a noun.

Word	Noun	Adjective	Verb	Adverb
strike dumb	No	No	Yes	No
impress	Yes	No	Yes	No

As verbs, impress is a hypernym of strike dumb; that is, impress is a word with a broader meaning than strike dumb:

Other hypernyms of strike dumb include affect, move, strike.

strike dumb (noun)	impress (noun)
	the act of coercing someone into government service

strike dumb (verb)	impress (verb)
render speechless, as by surprising or shocking	dye (fabric) before it is spun
	produce or try to produce a vivid impression of
	mark or stamp with or as if with pressure
	take (someone) against his will for compulsory service, especially on board a ship
	reproduce by printing
	impress positively
	have an emotional or cognitive impact upon