Breve

Diacritics in Latin & Greek
accent
acute( ´ )
double acute( ˝ )
grave( ` )
double grave( ̏ )
breve( ˘ )
inverted breve( ̑ )
caron, háček( ˇ )
cedilla( ¸ )
circumflex( ˆ )
diaeresis, umlaut( ¨ )
dot( · )
hook, hook above( ̡ ̢ ̉ )
horn( ̛ )
iota subscript( ͅ )
macron( ¯ )
ogonek, nosinė( ˛ )
perispomene( ͂ )
ring( ˚, ˳ )
rough breathing( ῾ )
smooth breathing( ᾿ )
Marks sometimes used as diacritics
apostrophe( ’ )
bar( ◌̸ )
colon( : )
comma( , )
hyphen( ˗ )
tilde( ~ )
Diacritical marks in other scripts
Arabic diacritics
Early Cyrillic diacritics
kamora( ҄ )
pokrytie( ҇ )
titlo( ҃ )
Gurmukhī diacritics
Hebrew diacritics
Indic diacritics
anusvara( ं ং ം )
chandrabindu( ँ ఁ )
nukta( ़ )
virama( ् ് ్ ් ್ )
chandrakkala( ് )
IPA diacritics
Japanese diacritics
dakuten( ﾞ )
handakuten( ﾟ )
Khmer diacritics
Syriac diacritics
Thai diacritics
Related
Dotted circle◌
Punctuation marks
Logic symbols

A breve (ⁱ/briːv/, less often ⁱ/brɛv/; French: [bʁɛv]; neuter form of the Latin brevis “short, brief”) is the diacritic mark ˘, shaped like the bottom half of a circle. As used in Ancient Greek, it is also called vrachy or brachy. It resembles the caron (the wedge or háček in Czech) but is rounded; the caron has a sharp tip.

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Wikipedia