A character, or accent, denoting in Greek a rise and of the voice on the same long syllable, marked thus [~ or ?]; and in Latin and some other languages, denoting a long and contracted syllable, marked [? or ^]. See Accent, n., 2.
The circumflex ( Ë† ) (often called a "caret", a "hat" or an "uppen") is a diacritic mark used in written Greek, French, Dutch, Esperanto, Norwegian, Romanian, Slovak, Vietnamese, Japanese romaji, Welsh, Portuguese, Italian, Afrikaans and other languages, and formerly in Turkish. It received its English name from Latin circumflexus (bent about)--a translation of the Greek Ï€ÎµÏÎ¹ÏƒÏ€Ï‰Î¼ÎÎ½Î· (perispomene).