socket vs alveolus

socket and alveolus both are nouns.

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

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

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

socket (noun)	alveolus (noun)
a receptacle into which an electric device can be inserted	a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways
receptacle where something (a pipe or probe or end of a bone) is inserted	a bony socket in the alveolar ridge that holds a tooth
a bony hollow into which a structure fits