- memorably
- memorandum
- memorial
- Memorial Day
- memorize
- memory
- memory bank
- memory card
- memory leak
- memory module
- memory span
- memory stick
- memory trace
- memsahib
- menace
- menacing
- menacingly
- menagerie
- Mencap
- mend
- mendacious
- mendacity
- mendelevium
- mendicant
- mendicity
- mending
- Menelaus
- menfolk
- menhir
- menial
- meningitis
- meniscus
- menology
- menopausal
- menopause
- menorrhagia
- men's room
- Mensa
- mensch
- menses
- menstrual
- menstruate
- menstruation
- mensurable
- mensuration
- menswear
- mental
- mental arithmetic
- mental cruelty
- mental health
- mental home
- mentalism
- mentality
- mentally
- mentee
- menthol
- mentholated
- mention
- mentor
- menu
- menu bar
- menu-controlled
- menu-driven
- meow
- MEP
- mephistophelean
- Mephistopheles
- meprobamate
- mercantile
- mercantilism
- mercantilist
- mercenarily
- mercenary
- mercer
- mercerize
- merchandise
- merchandising
- merchant
- merchant bank
- merchant banker
- merchant marine
- merchant navy
- merchant seaman
- merchant ship
- merchantman
- merciful
- mercifully
- merciless
- mercilessly
- mercurial
- mercurous
- mercury
- mercy
- mercy killing
- mere
- merely
- meretricious
- merganser
- merge
- merger
- meridian
- meringue
- merino
- merit
- merit increase
- merit system
- meritocracy
- meritorious
- merlin
- Merlin
- mermaid
- merman
- Merovingian
- merrily
- merriment
- merry
- merry-go-round
- merrymaker
- merrymaking
- mesa
- mescal
- mescaline
- mesclun
- mesh
- meshing
- meshuga
- mesmerism
- mesmerist
- mesmerize
- mesoblast
- mesocarp
- mesoderm
- Mesolithic
- mesomorph
- meson
- Mesopotamia
- Mesopotamian
- mesosphere
- mesotherapist
- mesotherapy
- Mesozoic
- mess
- mess jacket
- mess kit
- mess tin
- message
- message switching
- messaging
- messenger
- messenger bag
- messenger RNA
- messiah
- messianic
- messianism
- messily
- messiness
- messmate
- mess-room
- Messrs
- messuage
- mess-up
- messy
- Met
- Met Office
- metabolic
- metabolism
- metabolite
- metabolize
- metacarpal
- metacarpus
- metadata
- metafile
- metal
- metal detector
- metalanguage
- metaled
- metalinguistic
- metalinguistics
- metalled
- metallic
- metalling
- metallize
- metallurgist
- metallurgy
- metalware
- metalwork
- metalworker
- metalworking
- metamathematics
- metamorphic
- metamorphism
- metamorphose
- metamorphosis
- metaphor
- metaphorical
- metaphorically
- metaphrase
- metaphysic
- metaphysical
- metaphysically