phonograph record vs LP

phonograph record and LP both are nouns.

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

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

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
LP: a long-playing phonograph record; designed to be played at 33.3 rpm

Other hyponyms of phonograph record include L-P, 78, seventy-eight.

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