"Double O" ⟨Ꚙ ꚙ⟩ is a letter of the Cyrillic script. It is found in some early Old Church Slavonic manuscripts, where it is used in place of ⟨О⟩ in: двꚙе "two"' ꚙбо "both"' ꚙбанадесять "twelve"' and двꚙюнадесять "twelve".[1] The Cyrillic "double O" looks similar to the Latin-script double-o ligature: ⟨ꝏ⟩.