(n) white Christmas
(n) boot neckline
(n) box culvert
(n) (comp) port replicator
(n) (comp) portrait mode
(n) point of view
(n) pocket monster (internationally popular cartoon series, originally a video game)
(n) post-Keynesian
(n) postfeminism
(n) market garden
(n) market price
(n) marketplace
(n) market leader
(n) market research
(n) Maastricht Treaty (1992)
(n) merchant bank
(n) microsatellite
(n) micro Sievert
(n) (comp) macro project
(n) magnet school (public school offering special instruction in order to attract a more diverse student body)
(n) (comp) master document
(n) (comp) Magellan Passport
(n) (comp) matrix size
(n) manual transmission (gear selection done by hand)
(n) managed float
(n) malachite green
(n) multi-agent
(n) multiclient (advertising)
(n) (comp) multipoint connection
(n) midnight show