- modus
- mollify
- momentous
- monastery
- monastic
- moneyed
- muck something up
- monism
- monitive
- monitor lizard
- monitress
- monkey up
- monoatomic
- monobrow
- monocratie
- monomania
- monomaniacal
- monophonemics
- monopolistic
- monosepalous
- monotheist
- much of muchness
- monthly salary
- months
- monumental
- mph
- moondrop
- moor
- moose
- moplah jaggers
- moral advice
- moral fibre
- morbid
- morello
- morganatically
- morgue
- morphogenesis
- moschate
- most
- mother-in-law
- motley
- mottled
- mould
- mouldy
- mouthful
- move
- moving
- multicoloured
- mow someone down, mow something down
- much
- much to seek
- mucky
- muddy
- mundane
- municipal corporation
- musk-deer
- mutable
- mutant
- mutiny
- muzzy
- mythology
- mythomania
- mouthpiece
- moustache
- mourn
- mountain side
- mount
- mound
- moulder
- mortuary
- mortify
- mortality
- morphologist
- morose
- more or less
- make the grade
- morbific
- morbid protruberance of liver
- moralize
- moral turpitude
- moot
- mooing of a cow
- monument
- monovalent
- monotype
- monorhyme
- monolithic
- monocle
- msi
- moon-god
- moghuls
- maligner
- make a go of it
- monger
- motion to
- middle english
- matricidal
- mouth cavity
- madras
- modem