lotto vs board game

lotto and board game both are nouns.

Word	Noun	Adjective	Verb	Adverb
lotto	Yes	No	No	No
board game	Yes	No	No	No

As nouns, board game is a hypernym of lotto; that is, board game is a word with a broader meaning than lotto:

lotto: a game in which numbered balls are drawn at random and players cover the corresponding numbers on their cards
board game: a game played on a specially designed board

lotto (noun)	board game (noun)
a game in which numbered balls are drawn at random and players cover the corresponding numbers on their cards	a game played on a specially designed board