The voiceless bilabial plosive or stop is a type of

consonant In articulatory phonetics, a consonant is a speech sound that is articulated with complete or partial closure of the vocal tract, except for the h sound, which is pronounced without any stricture in the vocal tract. Examples are and pronou ...

al sound used in most spoken

language Language is a structured system of communication that consists of grammar and vocabulary. It is the primary means by which humans convey meaning, both in spoken and signed language, signed forms, and may also be conveyed through writing syste ...

s. The symbol in the

International Phonetic Alphabet The International Phonetic Alphabet (IPA) is an alphabetic system of phonetic notation based primarily on the Latin script. It was devised by the International Phonetic Association in the late 19th century as a standard written representation ...

that represents this sound is , and the equivalent

X-SAMPA The Extended Speech Assessment Methods Phonetic Alphabet (X-SAMPA) is a variant of SAMPA developed in 1995 by John C. Wells, professor of phonetics at University College London. It is designed to unify the individual language SAMPA alphabets, and ...

symbol is p.

Features

Features of the voiceless bilabial plosive:

Varieties

Occurrence

Research has shown that incidental learning positively impacts the acquisition of the /p/ sound for Arabic speakers and other EFL learners. This is particularly interesting given that the stop is missing from about 10% of languages that have a . (See

voiced velar stop The voiced velar plosive or stop is a type of consonantal sound used in many spoken languages. Some languages have the voiced pre-velar plosive, which is articulated slightly more front compared with the place of articulation of the prototypic ...

for another such gap.) This is an

areal feature In geolinguistics, areal features are elements shared by languages or dialects in a geographic area, particularly when such features are not descended from a common ancestor or proto-language. An areal feature is contrasted with genetic relatio ...

of the circum-Saharan zone (Africa north of the equator plus the

Arabian Peninsula The Arabian Peninsula (, , or , , ) or Arabia, is a peninsula in West Asia, situated north-east of Africa on the Arabian plate. At , comparable in size to India, the Arabian Peninsula is the largest peninsula in the world. Geographically, the ...

). It is not known how old this areal feature is, and whether it might be a recent phenomenon due to Arabic as a prestige language, or whether Arabic was itself affected by a more ancient areal pattern. It is found in other areas as well; for example, Fijian,

Onge The Onge (also Önge, Ongee, and Öñge) are an Andamanese ethnic group, indigenous to the Andaman Islands in Southeast Asia at the Bay of Bengal, India. They are traditionally hunter-gatherers and fishers, but also practice plant cultivatio ...

, and many

Papuan languages The Papuan languages are the non- Austronesian languages spoken on the western Pacific island of New Guinea, as well as neighbouring islands in Indonesia, Solomon Islands, and East Timor. It is a strictly geographical grouping, and does not imply ...

have but no . Nonetheless, the sound is very common cross-linguistically. Most languages have at least a plain , and some distinguish more than one variety. Many

Indo-Aryan languages The Indo-Aryan languages, or sometimes Indic languages, are a branch of the Indo-Iranian languages in the Indo-European languages, Indo-European language family. As of 2024, there are more than 1.5 billion speakers, primarily concentrated east ...

, such as Hindustani, have a two-way contrast between the aspirated and the plain (also transcribed as in

extensions to the IPA The Extensions to the International Phonetic Alphabet for Disordered Speech, commonly abbreviated extIPA , are a set of letters and diacritics devised by the International Clinical Phonetics and Linguistics Association to augment the Internati ...

Examples

Notes

References

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External links

* {{DEFAULTSORT:Voiceless Bilabial stop Bilabial stops Voiceless stops Pulmonic consonants Labial–coronal consonants