A
tittle or
superscript dot is a small distinguishing mark, such as a
diacritic or the dot on a
lowercase i or
j. The tittle is an integral part of the
glyph of
i and
j, but
diacritic dots can appear over other letters in various languages. In most languages, the tittle of
i or
j is omitted when a diacritic is placed in the tittle's usual position (as
í or ĵ), but not when the diacritic appears elsewhere (as į,
ɉ).