Waiter(n.)----“侍者”。指饭店，旅馆，餐室里的男侍者。女侍者是waitress。
Servant(n.)----“仆人”，“佣人”。指为工资，膳宿在别人家干活的人。
Attendant(n.)----“仆人”，侍从”。指跟随某人并为其服务的人。

例：Waiters and waitresses work in restaurants ,hotels, cafe and snack
bars.
     男女服务员在餐馆，旅  馆，咖啡馆，快餐馆里招待顾客。
    While we were waiting for the coffee, the head waiter came up to
us bearing a large basket full of huge peaches.
     当我们在等咖啡的时候，那个领班侍者拎来满满一大蓝子特大的桃子。
    The millionaire had a staff of 30 servants.
     这个富翁有仆从30名。
    In poor countries, live-in servants are present in home not only
of the wealthy but also of middle-ciass families.
     在贫穷国家，不仅富裕家庭，而且中等阶级家庭也有常住的佣人。
    The queen was always surrounded by her attendants.
     女王身边总有仆从跟随。
    The attendants went out backwards.
     随从倒退着出了房间。