A paid servant, especially one who has been employed for many years.
A fee one pays to reserve the other's time for services.
A device that holds teeth in position after orthodontic treatment.
Any thing or person that retains.
A dependent or follower of someone of rank.
A retaining valve.
Anyone or anything that does a lot of work; something or someone who works consistently or regularly.
A horse used primarily for manual labor; a draft horse.