P (IPA)
| Voiceless bilabial stop | |
|---|---|
| p | |
| IPA number | 101 |
| Encoding | |
| Entity (decimal) | p |
| Unicode (hex) | U+0070 |
| X-SAMPA | p |
| Kirshenbaum | p |
| Braille |  |
| Sound | |
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The voiceless bilabial stop is a type of consonantal sound used in many spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨p⟩, and the equivalent X-SAMPA symbol is p.
Features of the voiceless bilabial stop:
The stop [p] is missing from about 10% of languages that have a [b]. (See voiced velar stop for another such gap.) This is an areal feature of the "circum-Saharan zone" (Africa north of the equator, including the Arabian peninsula). 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 (Arabic lost its /p/ in prehistoric times), or whether Arabic was itself affected by a more ancient areal pattern. It is found in other areas as well; for example, in Europe, Proto-Celtic and Old Basque are both reconstructed as having [b] but no [p].
Nonetheless, the [p] sound is very common cross-linguistically. Most languages have at least a plain [p], and some distinguish more than one variety. 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).
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