Ef (Ф, ф) is the twenty-first letter of the Cyrillic alphabet.
It was directly derived from the Greek letter phi (Φ) and has replaced Fita (Ѳ) in the Russian version of the alphabet since 1918. Unlike phi, however, it is transliterated as "f", not "ph".
See also
For the latin alphabet letter, see F.
Last updated: 05-03-2005 09:00:33