A servant is someone who is employed to work at another person's home, for example, as a cleaner or a gardener. 仆人; 佣人
noun [集合/集体]仆人,佣人;(公司或机构的)雇员,职员;献身…的人,受…指引的人
You can use servant to refer to someone or something that provides a service for people or can be used by them. 雇员...a large Victorian family with several servants. …一个拥有几名佣人的维多利亚时代的大家庭。