wind cone vs visual signal

wind cone and visual signal both are nouns.

Word	Noun	Adjective	Verb	Adverb
wind cone	Yes	No	No	No
visual signal	Yes	No	No	No

As nouns, visual signal is a hypernym of wind cone; that is, visual signal is a word with a broader meaning than wind cone:

wind cone: a truncated cloth cone mounted on a mast; used (e.g., at airports) to show the direction of the wind
visual signal: a signal that involves visual communication

wind cone (noun)	visual signal (noun)
a truncated cloth cone mounted on a mast; used (e.g., at airports) to show the direction of the wind	a signal that involves visual communication