mistake; error; blunder
Ms
Missouri
mister; Mr
mystery
mysterious
misprint
mis-match
Mrs
-like; sort of; similar to; resembling
mix; mixture; mixing
mission; delegation
mitt
midnight
shameful; disgraceful; unsightly; indecent; unseemly; unbecoming; improper
midi (skirt, coat, etc.)
mitochondria
middle
par-four hole
mini-
communications within a small range
miniskirt; mini-skirt
miniature
minidisc; MD
minibuffer
minimum
Minnesota
mineral
mimic
Myanmar
museum
musical
musician
music
Muse; one's muse
Munich (Germany)
mirror
mirage
miracle
milli-; 10^-3
million
million seller; book, record, etc. which sells a million copies
milligram; mg
military look
millibar
millimeter; millimetre
millilitre; milliliter; mL
Milwaukee
milk
millennium
mink
minced meat; ground meat
mint; peppermint
mousse
having a good atmosphere; atmospheric; romantic
mood; atmosphere
movie; film
movement (political, social, artistic, etc.)
moulin
mussels