\[ODoubleAcute] (Mathematica Character Name)

Unicode: 0151. Alias: Esc o'' Esc. Letter. Included in ISO Latin-2. Used in Hungarian, for example in the name Erd ős.

\[ODoubleDot] (Mathematica Character Name)

Unicode: 00F6. Alias: Esc o" Esc. Letter. Included in ISO Latin-1.

\[OE] (Mathematica Character Name)

Unicode: 0153 Alias: Esc oe Esc. Letter.

\[OGrave] (Mathematica Character Name)

Unicode: 00F2. Alias: Esc o` Esc. Letter. Included in ISO Latin-1.

\[OHat] (Mathematica Character Name)

Unicode: 00F4. Alias: Esc o^ Esc. Letter. Included in ISO Latin-1.

\[Omicron] (Mathematica Character Name)

Unicode: 03BF. Aliases: Esc om Esc, Esc omicron Esc. Greek letter. Not the same as English o.

\[OTilde] (Mathematica Character Name)

Unicode: 00F5. Alias: Esc o~ Esc. Letter. Included in ISO Latin-1.

\[OverBrace] (Mathematica Character Name)

Unicode: FE37. Alias: Esc o{ Esc. Letter-like form. Extensible character.

\[OverBracket] (Mathematica Character Name)

Unicode: 23B4. Alias: Esc o[ Esc. Letter-like form. Extensible character.

\[OverParenthesis] (Mathematica Character Name)

Unicode: FE35. Alias: Esc o( Esc. Letter-like form. Extensible character.