a person working in the service of another (especially in the household)
source: WordNet 3.0
in a subordinate position
Theology should be the handmaiden of ethics. The state cannot be a servant of the church.
source: WordNet 3.0
One who serves, or does services, voluntarily or on compulsion; a person who is employed by another for menial offices, or for other labor, and is subject to his command; a person who labors or exerts himself for the benefit of another, his master or employer; a subordinate helper.
