socket vs hip socket

socket and hip socket both are nouns.

Word	Noun	Adjective	Verb	Adverb
socket	Yes	No	No	No
hip socket	Yes	No	No	No

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

socket: a bony hollow into which a structure fits
hip socket: the socket part of the ball-and-socket joint between the head of the femur and the innominate bone

Other hyponyms of socket include alveolus, tooth socket, acetabulum, cotyloid cavity.

socket (noun)	hip socket (noun)
a receptacle into which an electric device can be inserted	the socket part of the ball-and-socket joint between the head of the femur and the innominate bone
receptacle where something (a pipe or probe or end of a bone) is inserted
a bony hollow into which a structure fits