LP vs phonograph record

LP and phonograph record both are nouns.

Word	Noun	Adjective	Verb	Adverb
LP	Yes	No	No	No
phonograph record	Yes	No	No	No

As nouns, phonograph record is a hypernym of LP; that is, phonograph record is a word with a broader meaning than LP:

LP: a long-playing phonograph record; designed to be played at 33.3 rpm
phonograph record: sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove

Other hypernyms of LP include disc, disk, phonograph recording, platter, record.

LP (noun)	phonograph record (noun)
a long-playing phonograph record; designed to be played at 33.3 rpm	sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove