shack vs rusticate

shack is a noun but rusticate is not a noun.

Word	Noun	Adjective	Verb	Adverb
shack	Yes	No	Yes	No
rusticate	No	No	Yes	No

As verbs, rusticate is a hyponym of shack; that is, rusticate is a word with a more specific, narrower meaning than shack:

shack (noun)	rusticate (noun)
small crude shelter used as a dwelling

shack (verb)	rusticate (verb)
move, proceed, or walk draggingly or slowly	lend a rustic character to
make one's home in a particular place or community	give (stone) a rustic look
	send to the country
	suspend temporarily from college or university, in England
	live in the country and lead a rustic life