- Major Class Features
- Manner Features
- Manner of Articulation (Consonants)
- Mapping Principle
- Marked
- Meaning
- Metathesis
- Metrical Foot
- Mid
- Minimal Pair
- Modifier
- Mono-morphemic
- Monovalent Feature
- Morphological Frame
- Morphologically Conditioned Suppletion
- Morphology
- Morpheme
- Morpheme Types
- Mother