triple vs multiple

triple and multiple both are nouns.

Word	Noun	Adjective	Verb	Adverb
triple	Yes	Yes	Yes	No
multiple	Yes	Yes	No	No

As nouns, multiple is a hypernym of triple; that is, multiple is a word with a broader meaning than triple:

triple (noun)	multiple (noun)
a base hit at which the batter stops safely at third base	the product of a quantity by an integer
a quantity that is three times as great as another
a set of three similar things considered as a unit

triple (adjective)	multiple (adjective)
having three units or components or elements	having or involving or consisting of more than one part or entity or individual
three times as great or many

triple (verb)	multiple (verb)
increase threefold
hit a three-base hit