- murder
- murderer
- murderess
- murderous
- murex
- murk
- murkiness
- murky
- murmur
- murmuring
- murphy
- Murphy bed
- Murphy's law
- Murrayfield
- Mururoa Atoll
- MusB
- muscatel
- muscle
- muscle relaxant
- muscle strain
- muscle-bound
- muscleman
- muscly
- Muscovite
- muscular
- muscular dystrophy
- musculature
- MusD
- muse
- museology
- museum
- museum piece
- mush
- mush
- mushroom
- mushroom cloud
- mushrooming
- mushy
- music
- music box
- music case
- music centre
- music hall
- music paper
- music piracy
- music stand
- music video
- musical
- musical box
- musical chairs
- musical comedy
- musical instrument
- musicality
- musically
- musician
- musicianship
- music-lover
- musicologist
- musicology
- musing
- musingly
- musk
- musk deer
- musk ox
- musk rose
- musket
- musketeer
- musketry
- muskmelon
- muskrat
- musky
- Muslim
- muslin
- musquash
- muss
- mussel
- must
- must
- mustache
- mustachio
- mustachioed
- mustang
- mustard
- mustard bath
- mustard gas
- mustard plaster
- muster
- muster station
- must-have
- mustiness
- mustn't
- must-see
- must've
- musty
- mutability
- mutable
- mutagen
- mutant
- mutate
- mutation
- mute
- mute swan
- muted
- mutely
- mutilate
- mutilation
- mutineer
- mutinous
- mutiny
- mutism
- mutt
- mutter
- muttering
- mutton
- muttonchops
- muttonhead
- mutual
- mutual fund
- mutual insurance
- mutuality
- mutually
- Muzak
- muzziness
- muzzle
- muzzle velocity
- muzzle-loader
- muzzy
- MW
- mwah
- my
- myalgia
- myalgic encephalomyelitis
- Myanmar
- mycology
- mycosis
- mycotoxin
- myelin
- myelitis
- myeloma
- mynah
- myocardial
- myopia
- myopic
- myotonia
- myriad
- myrrh
- myrtle
- myself
- mysterious
- mysteriously
- mystery
- mystery play
- mystery story
- mystery tour
- mystic
- mystical
- mysticism
- mystification
- mystified
- mystify
- mystifying
- mystique
- myth
- mythical
- mythmaker
- mythological
- mythology
- mythomania
- mythomaniac
- myxomatosis