charades vs guessing game

charades and guessing game both are nouns.

Word	Noun	Adjective	Verb	Adverb
charades	Yes	No	No	No
guessing game	Yes	No	No	No

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

charades: guessing game in which one player pantomimes a word or phrase for others to guess
guessing game: a game in which participants compete to identify some obscurely indicated thing

charades (noun)	guessing game (noun)
guessing game in which one player pantomimes a word or phrase for others to guess	a game in which participants compete to identify some obscurely indicated thing