Farewell, good-bye, ave, congee, send-off, leave-taking, good-by, Godspeed, bon voyage, congé, and au revoir.
Example Sentences of Adieu
She mouthed a silent adieu from the car window.
She wrote a letter of adieu to her mentor.
The actor took his final bow and said adieu.
The garden was where she said her last adieu.
She bid her old home a tearful adieu.
He gave a sad adieu to his friends.
He offered a formal adieu to the audience.
The soldier gave an adieu to his family.
The farewell speech ended with a poetic adieu.