Ou (Majuscule: Ȣ, Minuscule: ȣ) is a ligature of the Greek letters ο and υ which was frequently used in Byzantine manuscripts. This omicron-upsilon ligature...

Kingdom Ou (digraph) Ou (ligature), the ligature ȣ in the Latin and Greek alphabets Uk (Cyrillic), the Cyrillic letter Ꙋ, derived from the ou ligature OU, an...

the ligatures that remained in use the longest are the Omicron-Upsilon ligature Ȣ for ου, which resembles an o with an u on top, and the abbreviation ϗ...

of ligatures to represent long vowels: ⟨ꜷ⟩, ⟨æ⟩, ⟨œ⟩, ⟨ᵫ⟩, ⟨ꭡ⟩, and ligatures for ⟨ee⟩, ⟨ou⟩ and ⟨oi⟩ that are not encoded in Unicode. Ligatures for...

vowel, equivalent to the IPA symbol ɵ 8, a common substitute for the ou-ligature ȣ 8, a letter in the Old Italic script (𐌚) with the value /f/ The Eight...

Transitional Alphabet to represent /u/, but due to font restrictions, the Ȣ ligature or Latin gamma are occasionally used instead. "Church Slavic" (PDF). Library...

for β, ε, Θ, θ, κ, ρ, Σ, σ/ς, π, Υ, Ύ, Ϋ, φ: ϐ ϵ ϴ ϑ ϰ ϱ Ϲ ϲ ϖ ϒ ϓ ϔ ϕ OU ligature which is used in Greek but encoded as a Latin letter: Ȣȣ Nicholas, Nick...

is given in Latin script in Unicode. See also List of Latin digraphs Ligatures in Unicode Trigraph Tetragraph Pentagraph Hexagraph Other Latin characters...

and two orthographic ligatures. ⟨w⟩ and ⟨k⟩ are rarely used except in loanwords and regional words. /w/ is usually written ⟨ou⟩; /k/ is usually written...

is capitalized ⟨dT⟩. Digraphs may develop into ligatures, but this is a distinct concept: a ligature involves the graphical fusion of two characters...