m/s is the symbol for metre per second, a unit of both speed and velocity.

example: speed of sound=340 m/s.

M/S or m/s may also refer to:

Motor ship, also MS, MV, M/V, or motor vessel, a maritime prefix M/S stereo coding (Mid/Side stereo encoding), in audio engineering Master/slave (BDSM) Messrs., especially in India as a prefix to a firm or company name.

See also m/s2, metre per second squared m/s3, a unit of jerk m/s4, a unit of jounce MS (disambiguation) M&S (disambiguation)