mos
- An abbreviation for 'months', often used in informal contexts to denote a period of time. nounThe project is expected to be completed in 6 mos.She has been working here for 18 mos.
- A slang term for 'moustache', often used in informal or humorous contexts. nounHe's growing a mos for Movember.That mos makes him look like an old-timey detective.