audiocassette vs cassette

audiocassette and cassette both are nouns.

Word	Noun	Adjective	Verb	Adverb
audiocassette	Yes	No	No	No
cassette	Yes	No	No	No

As nouns, cassette is a hypernym of audiocassette; that is, cassette is a word with a broader meaning than audiocassette:

audiocassette: a cassette for audiotape
cassette: a container that holds a magnetic tape used for recording or playing sound or video

audiocassette (noun)	cassette (noun)
a cassette for audiotape	a container that holds a magnetic tape used for recording or playing sound or video