- Greenwich Mean Time
- The pointer on a sundial.
- (geometry) A plane figure formed by removing a parallelogram from a corner of a larger parallelogram.
- (musici) a percussion instrument consisting of a metal disk that emits a sonorous sound when struck with a soft hammer
- a medal or award
- The calendar currently used in the western world. It replaced the Julian calendar and was devised to halt the slow drift of the vernal equinox towards earlier in the year.