- Labial
- [Labial]
- Labiodental
- [Laryngeal]
- Laryngeal Features
- Larynx
- Lateral
- [Lateral]
- Lax Vowels
- Lengthening
- Lenition
- Lexeme
- Lexical Ambiguity
- Lexical Stress
- Lexically Conditioned Suppletion
- Lexicon
- Light Syllable
- Linguistic Expression
- Lips
- Liquids
- Local Assimilation
- Long Distance Assimilation
- Loudness
- Low
- [Low]
- Lungs