The Syriac Abbreviation Mark is a Unicode control character (U+070F) that forms part of the Syriac script block. In Syriac, words are sometimes written in an abbreviated form, omitting some of the last letters. In such cases, a special overline is drawn over some of the final letters of the abbreviated word. Another use of this overline is to mark numbers: in Syriac numbers are written using numerical values which are assigned to letters (similarly to the Gematria system in Hebrew). The sequence of letters used to write the number are also marked by the overline.