windsock vs wind sock

windsock and wind sock both are nouns.

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

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

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

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

windsock (noun)	wind 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