false hair vs garb

false hair and garb both are nouns.

Word	Noun	Adjective	Verb	Adverb
false hair	Yes	No	No	No
garb	Yes	No	Yes	No

As nouns, garb is a hypernym of false hair; that is, garb is a word with a broader meaning than false hair:

false hair: a covering or bunch of human or artificial hair used for disguise or adornment
garb: clothing of a distinctive style or for a particular occasion

Other hypernyms of false hair include attire, dress.

false hair (noun)	garb (noun)
a covering or bunch of human or artificial hair used for disguise or adornment	clothing of a distinctive style or for a particular occasion

false hair (verb)	garb (verb)
	provide with clothes or put clothes on