bingo vs keno

bingo and keno both are nouns.

Word	Noun	Adjective	Verb	Adverb
bingo	Yes	No	No	No
keno	Yes	No	No	No

As nouns, bingo and keno are synonyms defined as:

bingo and keno: a game in which numbered balls are drawn at random and players cover the corresponding numbers on their cards

Other synonyms of bingo include beano, lotto.

bingo (noun)	keno (noun)
a game in which numbered balls are drawn at random and players cover the corresponding numbers on their cards	a game in which numbered balls are drawn at random and players cover the corresponding numbers on their cards