omega

noun

1. 1.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.
2. 2.(often capitalized) The end; the final, last or ultimate in a sequence.
3. 3.Angular velocity; symbol: ω.
4. 4.An omega male.
5. 5.The percentage change in an option value divided by the percentage change in the underlying asset's price.