- meteorologist
- method
- method demonstration
- meticulous
- mexican mint
- microbiology
- milk
- milk tooth
- milkman
- milksop
- millstone
- mime
- minced meat
- mire
- misappropriate
- misappropriation
- misinform
- mislead
- misogamist
- misogynist
- misquote
- mixed blessing
- mixed blood
- mixing up
- moan
- moblog
- moisturizer
- molasses
- mole
- molten
- monarch
- monarchic
- monochord
- monocle
- monolithic
- monorhyme
- monotype
- monovalent
- moral turpitude
- moralize
- morbid protruberance of liver
- morbific
- more or less
- mother's maiden name
- moulder
- mph
- much of muchness
- muck something up
- muddle
- muddle along, muddle through
- muss
- muster in force
- mutilate
- mutual
- muzzle
- mycology
- mystery
- muslim marriage
- mush
- murmur
- municipality
- mum
- multiplicity
- multiplication table
- moving
- make its way
- mouthpiece
- moustache
- mourn
- mountain side
- mount
- mound
- mortuary
- mortify
- mortality
- machiavellian
- make as if, make as though
- morphologist
- maladministration
- male
- manacle
- manful
- morose
- marches
- marvel
- marvelous
- masculinity
- mausoleum
- meaningful
- member
- memory
- midst
- mimicry
- mindless
- misbelieve
- moot
- miss someone out, miss something out
- misty
- mid-day sun
- modern