drop off vs air-drop

drop off and air-drop both are verbs.

Word	Noun	Adjective	Verb	Adverb
drop off	No	No	Yes	No
air-drop	No	No	Yes	No

As verbs, air-drop is a hyponym of drop off; that is, air-drop is a word with a more specific, narrower meaning than drop off:

Other hyponyms of drop off include wharf.

drop off (verb)	air-drop (verb)
change from a waking to a sleeping state	drop (an object) from the air; unload from a plane or helicopter
fall to a lower standard
fall or diminish
retreat
remove (cargo, people, etc.) from and leave