Sailor, Seaman, Mariner, Crewman
noun, の adjective
A member of a boat is called a sailor.
せんいん
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
私は昔この船の船員でした。
I used to be a sailor on this ship.
船員になるには色々なテストを受けなければいけません。
To become a seaman, you have to take various tests.
船員の仕事って大変だけど、お給料は結構良いのよね。
The sailor's work is hard, but the salary is pretty good.