ω

See also: ω΄, ὦ, Ω, ധ, ယ, ꞷ, w, ო, and Appendix:Variations of "o"

ω U+03C9, ω GREEK SMALL LETTER OMEGA ← ψ [U+03C8] Greek and Coptic ϊ → [U+03CA]

𝜔 U+1D714, 𝜔 MATHEMATICAL ITALIC SMALL OMEGA ← 𝜓 [U+1D713] Mathematical Alphanumeric Symbols 𝜕 → [U+1D715]

Translingual

Symbol

ω

1. (physics) angular velocity
2. (thermodynamics) acentric factor
3. (mathematics, set theory) The first (countably) infinite ordinal number, its corresponding cardinal number ℵ₀ or the set of natural numbers (the latter of which are often defined to equal the former).

See also

• ω on Wikipedia.Wikipedia

Ancient Greek

Etymology

From a ligature of two omicrons (οο) written close together.

Letter

ω • (ō) (lowercase, uppercase Ω)

1. Lower-case omega (ὦ μέγα), the 24th letter of the ancient Greek alphabet. It represented the long open-mid back rounded vowel /ɔː/. It is preceded by ψ.

Derived terms

See also omega

• ω΄ (o΄), ͵ω (͵o)
• ѡ, Ѡ; ꙍ, Ꙍ (Cyrillic)
• ꞷ, Ꞷ (Latin)
• ⲱ, Ⲱ (Coptic)

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) (lowercase, uppercase Ω)

1. The lower case letter omega (ωμέγα), the 24th and last letter of the modern Greek alphabet.

Derived terms

• ω΄ (o΄, “numeral: 800”)
• ͵ω (͵o, “numeral: 800,000”)

See also

see: Appendix:Greek alphabet

Interjection

ω! • (o!)

1. oh!