mp

1. melting point
2. mezzo piano

(ĕmˈpēˈ)

1. member of Parliament
2. military police
3. mounted police

(ĕmˌpē-thrēˈ)

1. An MPEG standard used especially for digitally transmitting music over the Internet.
2. A file containing a song or other audio data that is encoded using this standard: The band released its latest single as an MP3 on the Internet.