air sock vs windsock

air sock and windsock both are nouns.

Word	Noun	Adjective	Verb	Adverb
air sock	Yes	No	No	No
windsock	Yes	No	No	No

As nouns, air sock and windsock are synonyms defined as:

air sock and windsock: a truncated cloth cone mounted on a mast; used (e.g., at airports) to show the direction of the wind

Other synonyms of air sock include air-sleeve, drogue, sock, wind cone, wind sleeve, wind sock.

air sock (noun)	windsock (noun)
a truncated cloth cone mounted on a mast; used (e.g., at airports) to show the direction of the wind	a truncated cloth cone mounted on a mast; used (e.g., at airports) to show the direction of the wind