wind tee vs weathervane

wind tee and weathervane both are nouns.

Word	Noun	Adjective	Verb	Adverb
wind tee	Yes	No	No	No
weathervane	Yes	No	No	No

As nouns, weathervane is a hypernym of wind tee; that is, weathervane is a word with a broader meaning than wind tee:

wind tee: weather vane shaped like a T and located at an airfield
weathervane: mechanical device attached to an elevated structure; rotates freely to show the direction of the wind

Other hypernyms of wind tee include vane, weather vane, wind vane.

wind tee (noun)	weathervane (noun)
weather vane shaped like a T and located at an airfield	mechanical device attached to an elevated structure; rotates freely to show the direction of the wind