twice-baked bread vs rusk

twice-baked bread and rusk both are nouns.

Word	Noun	Adjective	Verb	Adverb
twice-baked bread	Yes	No	No	No
rusk	Yes	No	No	No

As nouns, twice-baked bread and rusk are synonyms defined as:

twice-baked bread and rusk: slice of sweet raised bread baked again until it is brown and hard and crisp

Other synonyms of twice-baked bread include Brussels biscuit, zwieback.

twice-baked bread (noun)	rusk (noun)
slice of sweet raised bread baked again until it is brown and hard and crisp	slice of sweet raised bread baked again until it is brown and hard and crisp