Definitions from Wiktionary ( )

▸ noun:  The twenty-fourth letter of the Classical and the Modern Greek alphabet, and the twenty-eighth letter of the Old and the Ancient Greek alphabet, i.e. the last letter of every Greek alphabet. Uppercase version: Ω; lowercase: ω.
▸ noun:  (often capitalized) The end; the final, last or ultimate in a sequence.
▸ noun:  (physics) Angular velocity; symbol: ω.
▸ noun:  (set theory) A transfinite ordinal number referring to the next position after ordering a countably infinite set.
▸ noun:  (slang) An omega male.
▸ noun:  (finance) The percentage change in an option value divided by the percentage change in the underlying asset's price.
▸ noun:  (fandom slang) In omegaverse fiction, a person of a submissive secondary sex driven by biology, magic, or other means to bond with an alpha, with males of this type often being able to get pregnant.
▸ adjective:  (slang, largely prepositive) Ultimate; of the highest degree. Massive, ineffable.
▸ adverb:  (slang, largely prepositive) Ultimately, most, supremely.
▸ noun:  Alternative letter-case form of omega [The twenty-fourth letter of the Classical and the Modern Greek alphabet, and the twenty-eighth letter of the Old and the Ancient Greek alphabet, i.e. the last letter of every Greek alphabet. Uppercase version: Ω; lowercase: ω.]

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