gusset plate vs gusset

gusset plate and gusset both are nouns.

Word	Noun	Adjective	Verb	Adverb
gusset plate	Yes	No	No	No
gusset	Yes	No	No	No

As nouns, gusset plate and gusset are synonyms defined as:

gusset plate (noun)	gusset (noun)
a metal plate used to strengthen a joist	a piece of material used to strengthen or enlarge a garment
	a metal plate used to strengthen a joist
	a piece of chain mail covering a place unprotected by armor plate