The voiceless bilabial plosive or stop is a type of consonantal sound used in most spoken languages.

Features of the voiceless bilabial plosive: Research has shown that incidental learning positively impacts the acquisition of the /p/ sound for Arabic speakers and other EFL learners.

This is an areal feature of the circum-Saharan zone (Africa north of the equator plus the Arabian Peninsula).

[2] It is found in other areas as well; for example, Fijian, Onge, and many Papuan languages have /b/ but no /p/.

Many Indo-Aryan languages, such as Hindustani, have a two-way contrast between the aspirated /pʰ/ and the plain /p/ (also transcribed as [p˭] in extensions to the IPA).