The
tie is a symbol in the shape of an
arc similar to a large
breve, used in
Greek, phonetic alphabets, and
Z notation. It can be used between two characters with spacing as
punctuation, or non-spacing as a
diacritic. It can be above or below, and reversed. Its forms are called
tie,
double breve,
enotikon or
papyrological hyphen,
ligature tie, and
undertie.