PNG images: Letter P collection
In English orthography and most other European languages, 〈p〉 represents the sound /p/.
A common digraph in English is 〈ph〉, which represents the sound /f/, and can be used to transliterate 〈φ〉 phi in loanwords from Greek. In German, the digraph 〈pf〉 is common, representing a labial affricate /pf/.
Most English words beginning with 〈p〉 are of foreign origin, primarily French, Latin, Greek, and Slavic; these languages preserve Proto-Indo-European initial *p. Native English cognates of such words often start with 〈f〉, since English is a Germanic language and thus has undergone Grimm's law; a native English word with initial /p/ would reflect Proto-Indo-European initial *b, which is so rare that its existence as a phoneme is disputed.
We currently have 45 Letter P PNG images available.