Formal word for a boat or ship
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embark
embark
+
-ación
noun suffix
Embarcación means vessel and is a noun1 related to the English word embark0, which means to board a vessel or ship. You embark on an embarcación.
embarcación
boat, vessel, watercraft (formal)
A formal word used to describe any type of boat or vessel used for transportation on water.
La embarcación navegaba hacia la islaThe vessel sailed toward the island
Vimos varias embarcaciones en el puertoWe saw several boats in the harbor