(metrology) Initialism of miles per gallon. / (organic chemistry) Initialism of monopropylene glycol.

(film) Initialism of Motion Picture Association.

Initialism of marine protection area. / (pharmacology) Initialism of medroxyprogesterone acetate.

Initialism of 4'-methyl-alpha-pyrrolidinopropiophenone. / (pharmacology) Synthetic heroin of the pyrrolidinophenone type.

(computing) Short for MPEG-4 Part 14; A file format for playing music and videos

An electronic device for playing digital audio files in the MP4 format (and, in many cases, also files in other formats).

(computing) Initialism of million packets per second.

plural of MPP

plural of MP4 player

a Bantu language of Tanzania.