Pe (Persian letter)

Pe () used to represent the phoneme , is a letter in the Perso-Arabic alphabet, based on "" () with two additional diacritic dots. It is one of the four letters that was created specifically for the Persian alphabet to symbolize sounds found in Persian but not Arabic, others being , and .
It is used in Persian, Kurdish, Pashto, Balochi, and other Iranian languages, Uyghur, Urdu, Sindhi, Kashmiri, Kuryan, Shina language, and Turkic languages (before the Latin and Cyrillic scripts were adopted). 
It is one of two additional common foreign letters (the other being ) that are sometimes used in some Arabic dialects to represent foreign sounds, it represents in loanwords and it can be substituted by such as in "protein" which is written as or . The letter is called in Egypt, ( , ""be" with three dots").