Labial means lips and Inter means ‘to put between’. Therefore, an interbilabial sound is one made by putting the tongue between the lips. The sound is made by putting the tongue between (or just touching) the two lips, stopping the air, letting the pressure build, then suddenly releasing it.
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Place of Articulation
The following diagram shows where the Plosive: Interbilabial Plosive is made in the mouth.
The Plosive: Interbilabial Plosive is used in the following sounds: