noun
omega
oh-MEG-uh/əʊˈmeɡə/
The last letter of the Greek alphabet.
The Greek alphabet begins with alpha and ends with omega.

Etymology
“Big o” distinguished the letter for a long vowel from omicron, “little o.” The name thus describes its ancient sound value, while the selected meaning identifies its position at the end of the alphabet.
More examples
- She writes a lowercase omega next to its uppercase form.
- The two omegas on the board look slightly different.
- The symbol for the ohm is an uppercase omega, Ω.
Forms
omega · omegas