DictionaryomegaGreek letter
noun

omega

oh-MEG-uh/əʊˈmeɡə/

The last letter of the Greek alphabet.

The Greek alphabet begins with alpha and ends with omega.

An ordered set of Greek-alphabet teaching tiles ends with a prominently highlighted omega tile, making both the letter and its final position visible.
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