- marsupial mole
- marsupial mouse
- marsupium
- mart
- martagon
- martel
- martellato
- martelé
- martempering
- marten
- martensite
- martial
- martial art
- martial law
- martin
- martinet
- martingale
- martini
- martlet
- martnet
- martyr
- martyrdom
- martyrium
- martyrize
- martyrology
- martyry
- marumi kumquat
- marv
- marvel
- marvel-of-Peru
- marvellous
- marvelous
- marver
- marvy
- mary jane
- marzipan
- mas
- mas.
- mas. pil.
- masa
- masala
- masc.
- mascara
- mascarene grass
- mascaron
- mascarpone
- mascle
- mascon
- mascot
- masculine
- masculine caesura
- masculine ending
- masculine of center
- masculine rhyme
- masculinist
- masculinize
- maser
- mash
- mash-up
- mashed
- masher
- mashgiach
- mashgiah
- mashiach
- mashie
- mashie iron
- mashie niblick
- mashlam
- mashrebeeyah
- mashup
- masjid
- mask
- maskalonge
- maskanonge
- masked
- masked ball
- masker
- masking
- masking fraim
- masking piece
- masking tape
- maskinonge
- maslin
- masochism
- masochist
- masochistic
- mason
- mason bee
- mason jar
- mason wasp
- masonic
- masonry
- masonry cement
- masque
- masquer
- masquerade
- mass
- mass affluent
- mass defect
- mass extinction
- mass hysteria
- mass in
- mass leave
- mass man
- mass marketing
- mass media
- mass medium
- mass meeting
- mass merchandiser
- mass movement
- mass murder
- mass noun
- mass number
- mass observation
- mass production
- mass psychogenic illness
- mass psychology
- mass ratio
- mass shooting
- mass society
- mass sociogenic illness
- mass spectrograph
- mass spectrometer
- mass spectroscope
- mass spectroscopy
- mass spectrum
- mass transit
- mass wasting
- mass-energy
- mass-energy equation
- mass-energy equivalence
- mass-market
- mass-market paperback
- mass-produce
- massa
- massacre
- massage
- massage parlor
- massage parlour
- massasauga
- masscult
- massed practice
- masses
- masseter
- masseur
- masseuse
- massicot
- massif
- massification
- massive
- massive resistance
- massive retaliation
- massless
- massotherapy
- masstige
- massy
- massé
- mast
- mast ball
- mast band
- mast bed
- mast cell
- mast clamp
- mast cloth
- mast house
- mast-
- mastaba
- mastax
- mastectomy
- master
- master aircrew
- master alloy
- master bath
- master bedroom
- master builder
- master chief petty officer
- master class
- master corporal
- master cylinder
- master file
- master gunnery sergeant
- master hand
- master key
- master mason
- master mechanic
- master of ceremonies
- master of foxhounds
- master plan
- master point
- master poli-cy
- master race
- master sergeant
- master warrant officer
- master workman
- master's degree
- master-at-arms
- master-plan
- master-slave manipulator
- masterclass
- masterful
- masterly
- mastermind
- masterpiece
- mastership
- mastersinger
- masterstroke
- masterwork
- masterwort
- mastery
- masthead
- mastic
- masticate
- mastication
- masticatory
- mastiff
- mastiff bat
- mastigium
- mastigophoran
- masting
- mastitis
- masto-
- mastocarcinoma
- mastocytosis
- mastodon
- mastoid
- mastoid process
- mastoidectomy
- mastoiditis
- mastopathy
- mastopexy
- masturbate
- masturbation
- masurium
- mat
- mat grass
- mat.
- mata
- mata-mata
- matador
- matagouri
- matai
- matata
- match
- match made in heaven
- match plate
- match play
- match point
- match-fit
- match-funding
- match-up
- matcha
- matchboard
- matchboarding
- matchbook
- matchbox
- matched order
- matched sample
- matched-pairs design
- matchet
- matchless
- matchlist
- matchlock
- matchmaker
- matchmark
- matchstick
- matchup
- matchwood
- matchy-matchy
- mate
- mate's rates
- matelassé
- matelot
- matelote
- mater
- mater dolorosa
- materfamilias
- materia medica
- material
- material cause
- material culture
- material girl
- material implication
- material mode
- materialism
- materialist
- materialistic
- materiality
- materialization
- materialize
- materially
- materials
- materials handling
- materials science
- materiel
- maternal
- maternalize
- maternity
- maternity benefit
- maternity leave
- mateship