P̃

P̃ is a Latin P with a diacritical tilde. It is or was used as a grapheme in some languages of Vanuatu, such as North [Efate language|North Efate], South Efate and Namakura, to represent a sound, like the in "cat" and in "pay", pronounced simultaneously. It is also used in the Yanesha' language.
The letter was introduced by missionaries and has been in use for over a hundred years.
In Bislama, the lingua franca of Vanuatu, p with tilde is called snekpi "snake-P".
In Old English, it was used as a contraction of the penny, as in ⋅cxx⋅ p̃..

Computer encoding

encodes p with tilde with a combining diacritical mark, rather than a precomposed character. As such, the tilde may not align properly with some fonts and systems.
In standard HTML code: majuscule P̃, minuscule p̃.
The Unicode HTML hex code is: minuscule p̃, majuscule P̃.
The Unicode HTML decimal code is: minuscule p̃, majuscule P̃.