Capable of being boarded; suitable for boarding (as in a ship) or able to be covered with boards.
From 'board' plus the suffix '-able' (meaning capable or worthy of). Simple English adjective formation creating a practical descriptor.
Boardable is a quietly practical word that appears in nautical contexts—a 'boardable ship' is one whose deck can be safely accessed, and in maritime history, whether a ship was boardable could determine outcomes of conflicts!
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