Definitions:

1. A major class of consonants in many languages and are distinguished by the role of the lips in their articulation. NOUN
   • Some languages, such as Japanese, do not have any labial consonants.
2. A speech sound that is produced by the movement or involvement of the lips. NOUN
   • Some people have a speech impediment that makes it difficult for them to pronounce labial consonants.

Synonyms:

• bilabial consonant
• glottal consonant
• labial