Definition of "goodbye" in English

interjection

1. Farewell; a formula used to another person or persons when the speaker, writer, or person addressed is departing.

   • Goodbye! - Goodbye, Anna.

noun

1. An utterance of goodbye, the wishing of farewell to someone.

   • They made their good-byes.
   • We have time for a short goodbye.

verb

1. To say goodbye; to wish somebody farewell on parting.