Retainer
Part of speech: noun
Definition: A dependent or follower of someone of rank. A paid servant, especially one who has been employed for many years. Any thing or person that retains. A fee one pays to reserve the other's time for services. A device that holds teeth in position after orthodontic treatment.
Example sentence: I don't want a retainer for 'EastEnders,' I've left. I've left for good.
Servant
Part of speech: noun
Definition: One who serves another, providing help in some manner.One who is hired to provide regular household or other duties, and receives compensation. As opposed to a slave.
Example sentence: U.S. President Theodore Roosevelt has been described as founder of the Bull Moose Party, the man who led his troops up San Juan Hill in the Spanish-American War, a big game hunter, family man, civic servant and a host of other things.