noun
available ship; ship ready for boarding
Refers to a ship that is available for travel, typically one that is about to depart or can be boarded. Often used in travel contexts.
次の便船は明日の朝に出港します。
The next available ship departs tomorrow morning.
noun or participle which takes 'suru', intransitive verb
board a ship; take a ship
Intransitive suru-verb meaning to get on a ship that is available for travel. The subject boards the ship.
私たちは港で便船して島へ向かった。
We boarded a ship at the port and headed for the island.