weathervane vs wind tee

weathervane and wind tee both are nouns.

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

As nouns, wind tee is a hyponym of weathervane; that is, wind tee is a word with a more specific, narrower meaning than weathervane:

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

Other hyponyms of weathervane include weathercock.

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