get at vs ruffle

get at is not a noun while ruffle is a noun.

Word	Noun	Adjective	Verb	Adverb
get at	No	No	Yes	No
ruffle	Yes	No	Yes	No

As verbs, ruffle is a hyponym of get at; that is, ruffle is a word with a more specific, narrower meaning than get at:

get at (noun)	ruffle (noun)
	a noisy fight
	a high tight collar
	a strip of pleated material used as a decoration or a trim

get at (verb)	ruffle (verb)
cause annoyance in; disturb, especially by minor irritations	pleat or gather into a ruffle
reach or gain access to	erect or fluff up
influence by corruption	disturb the smoothness of
	twitch or flutter
	mix so as to make a random order or arrangement
	trouble or vex
	discompose
	stir up (water) so as to form ripples
	to walk with a lofty proud gait, often in an attempt to impress others