macaronic
macrolinguistics
macron
main clause
main entry
majestic plural
major sentence
majuscule
malapropism
manner adverb
manner of articulation
Manutius, Aldus (the Elder)
Manutius, Aldus (the Younger)
marker
mass noun
mass-word
matronym
meaningless DO
measure word
Medieval Latin
meiosis
Mei Ying-tso
Mentalese
Mercian
Merge
merism
merismus
meronymy
Mesha Stele
mesolect
metacronym
metagrammatism
metalanguage
metalepsis
metalinguistics
metallage
metanalysis
metanoia
metaphor
metaphoric extension
metaplasm (linguistics)
metaplasm (rhetoric)
metastasis
metathesis
metonym
metonymy
metronymic
metronymy
microlinguistics
Middle English
Middle French
Middle High German
Middle Low German
militate | mitigate
minced oath
minimal free form
Minimalist Program
minimal pair
minor sentence
minuscule
mirative mood
misdivision
misplaced modifier
Mitchell, Richard
mixed metaphor
modal auxiliary verb
modality
modal verb
Modern English
Modern Language Association (MLA)
Modern Latin
modifier
mondegreen
monepic
monogenesis
mononym
monophthong
monophthongization
monospaced font
monosyllabic language
monosyllable
Montfaucon, Bernard de
mood
morph
morpheme
morphemics
morphology
morphophonology
motherese
multiple negation
mumpsimus
Muphry's law
Murray, James
mutated plural
mycterismus