Cyrillic epsilon is a letter of the Cyrillic script. Its form is a reversed Cyrillic letter Ze. It resembles the Latin letter epsilon (Ɛ ɛ) and the Greek letter Epsilon (Ε ε), as well as a hand-written form of the uppercase Latin E and Cyrillic letter Ye. Reversed Ze was added to the Unicode 5.0 Standard, but is still uncommon in most Cyrillic fonts.