disembarkation vs disembarkment

disembarkation and disembarkment both are nouns.

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

As nouns, disembarkation and disembarkment are synonyms defined as:

disembarkation and disembarkment: the act of passengers and crew getting off of a ship or aircraft

Other synonyms of disembarkation include debarkation.

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