embarkation vs embarkment

embarkation and embarkment both are nouns.

Word	Noun	Adjective	Verb	Adverb
embarkation	Yes	No	No	No
embarkment	Yes	No	No	No

As nouns, embarkation and embarkment are synonyms defined as:

embarkation and embarkment: the act of passengers and crew getting aboard a ship or aircraft

Other synonyms of embarkation include boarding.

embarkation (noun)	embarkment (noun)
the act of passengers and crew getting aboard a ship or aircraft	the act of passengers and crew getting aboard a ship or aircraft