m 1 or M 
(ĕm)
(ĕm)n. pl. m's or M's also ms or Ms
1. The 13th letter of the modern English alphabet.
2. Any of the speech sounds represented by the letter m.
3. The 13th in a series.
4. Something shaped like the letter M.
memorial stone, Canterbury Cathedral, EnglandInscribed "Thomas," this marker at the Altar of Sword's Point commemorates the martyrdom of Saint Thomas à Becket (1118?-1170).
- precentorial
- precept
- preceptive
- preceptively
- preceptor
- preceptorial
- preceptorially
- preceptorship
- preceptory
- preceramic
- precess
- precession
- precessional
- precession of the equinoxes
- pre-Christian
- precinct
- preciosity
- precious
- preciously
- precious metal
- preciousness
- precious stone
- precipice
- precipitable
- precipitance