disembarkment vs landing

disembarkment and landing both are nouns.

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

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

disembarkment: the act of passengers and crew getting off of a ship or aircraft
landing: the act of coming to land after a voyage

disembarkment (noun)	landing (noun)
the act of passengers and crew getting off of a ship or 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