Definition

Noun: A labial stop is a type of consonant sound in phonetics produced by completely blocking the airflow using the lips and then releasing it. It is a "stop" (or plosive) consonant because the airflow is stopped and then released.

Usage

The term is used in technical linguistic and phonetic contexts to classify and describe speech sounds. * In English, the sounds represented by the letters p and b are labial stops. * Phoneticians analyze whether a labial stop is voiced (like /b/) or voiceless (like /p/).

Examples

• The words "pat" and "bat" begin with different labial stops.
• The initial sound in "pin" is a voiceless labial stop.
• In phonetic transcription, labial stops are often represented by the symbols [p], [b].

Advanced Usage

• Place of Articulation: "Labial" specifies the place of articulation (the lips).
• Manner of Articulation: "Stop" specifies the manner of articulation (complete closure and release).
• Phonological Analysis: Linguists study how labial stops pattern in different languages, such as their role in syllable structure or sound changes.

Variants and Related Words

• Bilabial Stop: A more precise synonym, indicating both lips are used.
• Labial (adj): Pertaining to the lips.
• Stop / Plosive (n): The broader category of consonant sounds made by a complete obstruction of airflow.

Synonyms

• Bilabial plosive
• Bilabial stop (This is the most precise and commonly used synonym.)

Related Terms (Phonetics)

• Alveolar Stop: A stop consonant produced with the tongue against the alveolar ridge (e.g., /t/, /d/).
• Velar Stop: A stop consonant produced with the back of the tongue against the soft palate (e.g., /k/, /g/).
• Voicing: The vibration of the vocal cords, which distinguishes /b/ (voiced) from /p/ (voiceless).

Noun

1. a stop consonant that is produced with the lips