(n) processor
(P)
(n) proscenium
(n) headset (for phones, etc.)
(n) best-seller
(P)
(n) berserker
(n) (constellation) Perseus
(n) wholesale
(n) (uk) brown-spotted grouper (species of fish, Epinephelus chlorostigma)
(n) poinsettia (lat:)
(n) marmoset (esp. the common marmoset, Callithrix (Callithrix) jacchus)
(n) Meissen porcelain
(n) mass sales
(n) millisecond
(n) millisecond
(n) milk shake
(n,vs) makes sense (wasei: make sense)
(n) metasequoia (lat:)
dawn redwood (Metasequoia glyptostroboides)
(P)
(n) metacentre
(n) (comp) MESSAGE TRANSFER
(n) (comp) member set
(n) (obsc) Pentateuch (first five books of the Bible, traditionally attributed to Moses)
(n) mignonette (Reseda odorata)
(n) unisex (wasei: monosex)
monosexual
(n) moral sense
(n) yard sale
(n) young Mrs
(n) unisex
(n) licensee
(n) (uk) Russell's viper (Daboia russelii)
(n) (comp) label set