airplane landing vs landing

airplane landing and landing both are nouns.

Word	Noun	Adjective	Verb	Adverb
airplane landing	Yes	No	No	No
landing	Yes	No	No	No

As nouns, landing is a hypernym of airplane landing; that is, landing is a word with a broader meaning than airplane landing:

airplane landing (noun)	landing (noun)
landing an aircraft	the act of coming to land after a voyage
	the act of coming down to the earth (or other surface)
	structure providing a place where boats can land people or goods
	an intermediate platform in a staircase