- Multi member
- Multi valence
- Multicuisine
- Multidisciplinary
- Multifarious
- Multiformity
- Multimillionaire
- Multiplicant
- Multiplicity of devices
- Multipurpose
- Multiracial
- Multisaking
- Mum
- Mumbo-jumbo
- Mummer
- Mummery
- Munch
- Municipal corporation
- Municipal council
- Municipality
- Munificent
- Muon
- Murder will out
- Murderess
- Murderous
- Murderously
- Murmuring
- Muscle
- Muscle-man
- Muse
- Museology
- Museum piece
- Music stand
- Musical
- Musical rhythm
- Musical variety
- Musk
- Musk-deer
- Musk-rat
- Musket
- Muslim
- Mussitate
- Must
- Mustang
- Mustiness
- Mutawa
- Mute
- Mutely
- Mutilate
- Mutineer
- Mutter
- Muttering
- Muttering prayer
- Muttering prayers
- Mutton
- Mutton dressed as a lamb
- Mutual consent
- Mutualism
- Mutually
- Muzzle
- Muzzy
- My lord
- My whole soul rises against it
- Myopathy
- Myriad
- Myriapod
- Myrrh
- Mysore
- Mysticism
- Mystique
- Myth
- Mythical stories
- Mythical tortoise shouldering the earth
- Mythological
- Mythomania
- Marl
- Maying
- Murrain
- Malingerer
- Mall
- Miscellanea
- Moan
- Moil
- Monarchical
- Monarchism
- Macabre
- Macadamization
- Macerate
- Maceration
- Machete
- Machiavellian
- Machinator
- Machine
- Machine instruction
- Machine run
- Macho
- Mackerel
- Macro
- Macsyma
- Maculation