Dictionary entry

Ω

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

Ω, ω, ὦ μέγα (cf. μικρόν),

omega, ô, the twenty-fourth and last letter. As a numeral, ωʹ = 800, ω͵ = 800,000. As a symbol of the last (= τὸ τέλος), τὸ Ὦ (Rec. Ω, L, , T, ω), the Omega: Re 1:821:622:13 (cf. Ἄλφα).†