Ω

See also: ω, ჲ, ὥ, ὦ, ᾧ, -ῳ, ᘯ, and Appendix:Variations of "o"

Ω U+03A9, Ω GREEK CAPITAL LETTER OMEGA ← Ψ [U+03A8] Greek and Coptic Ϊ → [U+03AA]

Ω U+2126, Ω OHM SIGN ← ℥ [U+2125] Letterlike Symbols ℧ → [U+2127]

Translingual

Symbol

Ω (U+03A9) or Ω (U+2126) Apple: ALT + (lowercase) z

1. The symbol for ohm, the unit of electrical resistance in the International System of Units.

Usage notes

The Unicode Standard states that Ω (U+2126 OHM SIGN) is included in Unicode only for backward compatibility reasons. To represent ohms, Ω (U+03A9 GREEK CAPITAL LETTER OMEGA) is preferred.

Derived terms

Symbol for ohm

• YΩ
• EΩ
• PΩ
• TΩ
• GΩ
• MΩ
• hΩ
• daΩ
• dΩ
• cΩ
• mΩ
• µΩ
• nΩ
• pΩ
• fΩ
• aΩ
• zΩ
• yΩ

• Ω/□

See also

• Ω on Wikipedia.Wikipedia

Ancient Greek

Etymology

The most common uppercase form is a variant of omicron (Ο), broken up at the side (), with the edges subsequently turned outward (, , , ). The alternative uppercase form, found in some typefaces, that looks like a larger version of lowercase ω, is from a digraph of two omicrons written close together.

Letter

Ω • (Ō) (uppercase, lowercase ω)

1. The letter omega (ὦ μέγα), the 24th letter of the ancient Greek alphabet.

Derived terms

• (Cyrillic) Ѡ, Ꙍ
• (Coptic) Ⲱ
• (Latin) Ꞷ

See also

• (Greek-script letters) Α α, Β β, Γ γ, Δ δ, Ε ε, Ζ ζ, Η η, Θ θ, Ι ι, Κ κ, Λ λ, Μ μ, Ν ν, Ξ ξ, Ο ο, Π π, Ρ ρ, Σ σ ς, Τ τ, Υ υ, Φ φ, Χ χ, Ψ ψ, Ω ω
• (non-Classical letters) Ϝ ϝ, Ͷ ͷ, Ͱ ͱ, Ϻ ϻ, Ϙ ϙ, Ͳ ͳ
• (punctuation) · ﹔
• (diacritics) ᾿ ῾ ◌́ ◌̀ ῀ ¨

Greek

Letter

Ω • (O) (uppercase, lowercase ω)

1. The upper case letter omega (ωμέγα), the last letter of the modern Greek alphabet.
2. The upper case letter omega (Ω) is used as the mathematical notation or symbol for the last place in a set or group of items.

Numeral

Ω • (O)

1. The number 800 in Greek numerals.
2. The number 800,000 in Greek numerals.

See also

see: Appendix:Greek alphabet