garb vs fit out

garb is a noun but fit out is not a noun.

Word	Noun	Adjective	Verb	Adverb
garb	Yes	No	Yes	No
fit out	No	No	Yes	No

As verbs, garb and fit out are synonyms defined as:

Other synonyms of garb include apparel, clothe, dress, enclothe, garment, habilitate, raiment, tog.

garb (noun)	fit out (noun)
clothing of a distinctive style or for a particular occasion

garb (verb)	fit out (verb)
provide with clothes or put clothes on	provide with clothes or put clothes on
	provide with (something) usually for a specific purpose