boarder
n
1 person who boards at sb's house 在某人家中寄膳者.
2 pupil who lives at a boarding-school during the term 在学校寄宿的学生
This school has 300 boarders and 150 day pupils. 这所学校有寄宿生300人, 走读生150人.
3 person who boards a ship, esp when attacking it 登船的人（尤指攻击该船时）.