GREEK CAPITAL LETTER OMEGA

About this character

Omega (Ω) is the 24th and final letter of the Greek alphabet, descended from the Phoenician letter ayin. Historically, it was introduced to represent a long open-o sound, and it carries strong symbolic weight as a marker of endings or ultimate limits. In physics and engineering, uppercase Ω is the SI symbol for ohm, the unit of electrical resistance. In programming, it appears in Unicode identifiers, mathematical notation, and complexity theory, where it denotes asymptotic lower bounds. Typographically, its distinctive rounded form is often used in design as an emblem of completion, transcendence, or the concept of totality. Its Unicode codepoint is U+03A9, distinct from the identical-looking ohm sign U+2126.

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