- Monovalent
- Montane
- Monthly
- Moody
- Mooing of a cow
- Moolah
- Moon face
- Moon flower
- Moon set
- Moon-faced
- Moor land
- Moot
- Mop up
- Mope
- Moplah
- Moral duty
- Moral obligation
- Moreover
- Moral power
- Moral support
- Moral turpitude
- Moral victory
- Morality
- Moratorium
- Morbidity
- Mordant
- Mordantly
- More and more
- More of
- More so
- Mores
- Mormon
- Morn
- Moron
- Morpheme
- Morphic
- Morphogenesis
- Morsel
- Mortal remains
- Mortal sin
- Mortal weapon
- Mortal wounds
- Mortality table
- Mortally
- Mortgage
- Mortgaged
- Mortgagee
- Mortician
- Mortuary
- Mosaic law
- Mosfet
- Mosquito net
- Most noble
- Most probably
- Mote in person eye
- Motel
- Moth-eaten
- Mother country
- Mother nature
- Mother's maiden name
- Motherless
- Motherliness
- Motion
- Motion of no-confidence
- Motley
- Motor area
- Mug
- Mottled cloth
- Mouldiness
- Moulding machine
- Mouldy
- Mount guard
- Mount pit
- Mountain side
- Mountain slope
- Mountain top
- Mountain valley
- Mournful
- Mourning
- Mousiness
- Mouth piece
- Movable
- Movables
- Move for
- Move-house
- Moveable
- Moveable feast
- Moved
- Movie
- Movie star
- Moving
- Moving van
- Mow
- Mow down
- Mowing machine
- Mozzarella
- Mp
- Mt
- Mt.everest
- Mtbf