n. - A clock, watch, or other chronometer; a timepiece.
n. - A person who keeps, marks, regulates, or determines the time.
n. - A person who keeps a record of the time spent by workmen at their work.
n. - One who gives the time for the departure of conveyances.
n. - One who marks the time in musical performances.
n. - One appointed to mark and declare the time of participants in races or other contests.