straightjacket vs garment

straightjacket and garment both are nouns.

Word	Noun	Adjective	Verb	Adverb
straightjacket	Yes	No	No	No
garment	Yes	No	Yes	No

As nouns, garment is a hypernym of straightjacket; that is, garment is a word with a broader meaning than straightjacket:

straightjacket: a garment similar to a jacket that is used to bind the arms tightly against the body as a means of restraining a violent person
garment: an article of clothing

straightjacket (noun)	garment (noun)
a garment similar to a jacket that is used to bind the arms tightly against the body as a means of restraining a violent person	an article of clothing

straightjacket (verb)	garment (verb)
	provide with clothes or put clothes on