- maw
- may
- mayhem
- mayonnaise
- maypole
- mazy
- meadow
- meager
- meal ticket
- mealtime
- meander
- meddle
- medical aid
- medicinal
- medicine
- meerkat
- mend one's manners
- menial
- money
- mercurial
- mercury
- meringue
- mesmerize
- mess
- meteorologist
- method
- method demonstration
- meticulous
- mexican mint
- microbiology
- midshipman
- midterm
- migratory
- milch
- mild
- militaristic
- military
- military job
- military service
- minefield
- mingle
- minion
- minor
- mint
- misconception
- miscreant
- misdate
- miser
- missing
- misspent
- mistreat
- moisturizer
- molasses
- mole
- molten
- monarch
- monarchic
- monition
- monochord
- monocle
- monolithic
- monorhyme
- monotype
- monovalent
- moral turpitude
- moralize
- morbid protruberance of liver
- morbific
- more or less
- moulder
- mph
- much of muchness
- muck something up
- muddle
- muddle along, muddle through
- muss
- muster in force
- mutilate
- mutual
- muzzle
- mycology
- mystery
- mentally
- meditate
- mad
- malaise
- manic
- manufacture
- marginal
- maritime
- masculine
- mobilize
- mechanize
- medal
- memorize
- menu
- merry
- metropolis
- miffed
- misbegotten