bender vs carousal

bender and carousal both are nouns.

Word	Noun	Adjective	Verb	Adverb
bender	Yes	No	No	No
carousal	Yes	No	No	No

As nouns, bender and carousal are synonyms defined as:

Other synonyms of bender include booze-up, carouse, toot.

bender (noun)	carousal (noun)
revelry in drinking; a merry drinking party	revelry in drinking; a merry drinking party
a pitch of a baseball that is thrown with spin so that its path curves as it approaches the batter
a tool for bending