landing vs debarkation

landing and debarkation both are nouns.

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

As nouns, debarkation is a hyponym of landing; that is, debarkation is a word with a more specific, narrower meaning than landing:

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

Other hyponyms of landing include amphibious landing, disembarkation, disembarkment.

landing (noun)	debarkation (noun)
the act of coming to land after a voyage	the act of passengers and crew getting off of a ship or aircraft
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