sleeve vs record sleeve

sleeve and record sleeve both are nouns.

Word	Noun	Adjective	Verb	Adverb
sleeve	Yes	No	No	No
record sleeve	Yes	No	No	No

As nouns, record sleeve is a hyponym of sleeve; that is, record sleeve is a word with a more specific, narrower meaning than sleeve:

Other hyponyms of sleeve include record cover.

sleeve (noun)	record sleeve (noun)
the part of a garment that is attached at the armhole and that provides a cloth covering for the arm	a sleeve for storing a phonograph record
small case into which an object fits