Voiceless bilabial plosive in the context of Speech communication

Pi (/ˈpaɪ/ ; Ancient Greek /piː/ or /peî/, uppercase Π, lowercase π, cursive ϖ; Greek: πι) is the sixteenth letter of the Greek alphabet, representing the voiceless bilabial plosive IPA: [p]. In the system of Greek numerals it has a value of 80. It was derived from the Phoenician letter Pe (). Letters that arose from pi include Latin P, Cyrillic Pe (П, п), Coptic pi (Ⲡ, ⲡ), and Gothic pairthra (𐍀).

Central Atlas Tamazight or Atlasic (native name: ⵜⴰⵎⴰⵣⵉⵖⵜ Tamazight [tæmæˈzɪxt, θæmæˈzɪxθ]; Arabic: أمازيغية أطلس الأوسط) is a Berber language of the Afroasiatic language family spoken by around 2.7 million speakers or 7.4% of the population of Morocco.

Central Atlas Tamazight is one of the most-spoken Berber languages, along with Tachelhit, Kabyle, Riffian, Shawiya and Tuareg. In Morocco, it comes second as the most-spoken after Tachelhit. All five languages may be referred to as "Tamazight", but Central Atlas speakers are the only ones who use the term exclusively. As is typical of Afroasiatic languages, Tamazight has a series of "emphatic consonants" (realized as pharyngealized), uvulars, pharyngeals and lacks the phoneme /p/. Tamazight has a phonemic three-vowel system but also has numerous words without vowels.

Phi (/ˈfaɪ, ˈfiː/ FY, FEE; uppercase Φ, lowercase φ or ϕ; Ancient Greek: ϕεῖ pheî [pʰéî̯]; Modern Greek: φι fi [fi]) is the twenty-first letter of the Greek alphabet.

In Archaic and Classical Greek (c. 9th to 4th century BC), it represented an aspirated voiceless bilabial plosive ([pʰ]), which was the origin of its usual romanization as ⟨ph⟩. During the later part of Classical Antiquity, in Koine Greek (c. 4th century BC to 4th century AD), its pronunciation shifted to a voiceless bilabial fricative ([ɸ]), and by the Byzantine Greek period (c. 4th century AD to 15th century AD) it developed its modern pronunciation as a voiceless labiodental fricative ([f]).The romanization of the Modern Greek phoneme is therefore usually ⟨f⟩.

In phonetics, a plosive, also known as an occlusive or simply a stop, is a pulmonic consonant in which the vocal tract is blocked so that all airflow ceases.

The occlusion may be made with the tongue tip or blade ([t], [d]), tongue body ([k], [ɡ]), lips ([p], [b]), or glottis ([ʔ]). Plosives contrast with nasals, where the vocal tract is blocked but airflow continues through the nose, as in /m/ and /n/, and with fricatives, where partial occlusion impedes but does not block airflow in the vocal tract.

In phonetics, a homorganic consonant (from Latin homo- 'same' and organ '[speech] organ') is a consonant sound that is articulated in the same place of articulation as another. For example, [p], [b] and [m] are homorganic consonants of one another since they share the bilabial place of articulation. Consonants that are not articulated in the same place are called heterorganic.

An oral consonant is a consonant sound in speech that is made by allowing air to escape from the mouth, as opposed to the nose, as in a nasal consonant. To create an intended oral consonant sound, the entire mouth plays a role in modifying the air's passageway. This rapid modification of the air passageway using the tongue and lips makes changes to the waveform of the sound by compressing and expanding the air. In addition to the nose and mouth, the vocal cords and lungs also make a contribution to producing speech by controlling the volume (amplitude) and pitch (frequency) of the sound. The use of the vocal cords will also determine whether the consonant is voiced or voiceless. Most consonants are oral, such as, for example [p], [w], [v] and [x]. The others are nasal, such as the nasal occlusives [m] or [n].

Pe is the seventeenth letter of the Semitic abjads, including Arabic fāʾ ف‎, Aramaic pē 𐡐, Hebrew pē פ‎, Phoenician pē 𐤐, and Syriac pē ܦ. (in abjadi order). It is related to the Ancient North Arabian 𐪐‎, South Arabian 𐩰, and Ge'ez ፈ.

The original sound value is a voiceless bilabial plosive /p/ and it retains this value in most Semitic languages, except for Arabic, where the sound /p/ changed into the voiceless labiodental fricative /f/, carrying with it the pronunciation of the letter. However, the sound /p/ in Arabic is used in loanwords with the letter pe as an alternative. Under the Persian influence, many Arabic dialects in the Persian Gulf, as well as in Egypt and in some of the Maghreb under the Ottoman influence uses the letter pe to represent the sound /p/ which is missing in Modern Standard Arabic. Not to be confused with the Turned g. The Phoenician letter gave rise to the Greek Pi (Π), Latin P, Glagolitic Ⱂ, and Cyrillic П.

Pe (П п; italics: П п or П п; italics: П п) is a letter of the Cyrillic script.

It commonly represents the unaspirated voiceless bilabial plosive /p/, like the pronunciation of ⟨p⟩ in "spin".

Apedemak or Apademak (originally, due to the absence of the /p/ phoneme in Meroitic, it was probably pronounced 'abademak' (Father king, Aba meaning father and mak meaning king) ) was a major deity in the ancient Nubian and Kushite pantheon. Often depicted as a figure with a male human torso and a lion head, and at the temple of Naqa with a snakes body and a lion's head, Apedemak was a war god worshiped by the Meroitic peoples inhabiting Kush. He is often considered the equivalent of Maahes the lion-headed war god of Egypt, despite a claim of the two not being counterparts. As a war god, Apedemak came to symbolize martial power, military conquest, and empire. Apedemak is also closely associated with Amun, the state-sponsored Egyptian deity during the preceding Napatan period, and is assumed to hold an equal level of importance.

Ve (ڤ) is a letter of the Arabic-based Comoro, Kurdish, Luri, Swahili, and Wakhi alphabets. It is derived from the Arabic letter fāʾ (ف) with two additional dots. It represents the sound /v/ in the aforementioned uses. On the other hand, the letter Pa (ڤ) represents the sound /p/ in the Jawi (used for Malay) and Pegon (used for Javanese) alphabets.

Ve originated as one of the new letters added for the Perso-Arabic alphabet to write New Persian, and it was used for the sound /β/. This letter is no longer used in Persian, as the [β]-sound changed to [b], e.g. archaic زڤان /zaβɑn/ > زبان /zæbɒn/ 'language'

In phonetics and phonology, a bilabial stop is a type of consonantal sound, made with both lips (hence bilabial), held tightly enough to block the passage of air (hence a stop consonant). The most common sounds are the stops [p] and [b], as in English pit and bit, and the voiced nasal [m]. More generally, several kinds are distinguished:

• [p], voiceless bilabial plosive
• [b], voiced bilabial plosive
• [m], voiced bilabial nasal
• [m̥], voiceless bilabial nasal
• [ɓ], voiced bilabial implosive
• [pʼ], bilabial ejective (rare)
• [ɓ̥] or [pʼ↓], voiceless bilabial implosive (very rare)