phonograph recording vs LP

phonograph recording and LP both are nouns.

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

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

phonograph recording: 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 recording include L-P, 78, seventy-eight.

phonograph recording (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