adieu
They sorrowfully bid each other adieu at the airport.
Not all academics are ready to bid adieu to textbooks just yet.
She bade her childhood adieu and left home.
humorous This new cleaner lets you bid adieu to endless scrubbing and polishing! Just spray and wipe!

SMART Vocabulary: related words and phrases

Welcoming, greeting & greetings
afternoon
air kiss
aloha
ayup
buh-bye
g'day
god
hello
hello strangeridiom
hiya
howdy
lady
mind
morning
namaskar
namaste
pleased
poke
press the fleshidiom
wish