wind sleeve vs air sock

wind sleeve and air sock both are nouns.

Word	Noun	Adjective	Verb	Adverb
wind sleeve	Yes	No	No	No
air sock	Yes	No	No	No

As nouns, wind sleeve and air sock are synonyms defined as:

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

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

wind sleeve (noun)	air sock (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