exclamation

used to express good wishes when parting or at the end of a conversation.

farewell,adieu,hooray,check you,au revoir,ciao,auf Wiedersehen,adios,sayonara,vale,bye,bye-bye,so long,see you,see you later,catch you later,cheers,cheerio,ta-ta,ta-ra,later,laters,toodle-oo,toodle-pip,pip pip

noun

an instance of saying ‘goodbye’; a parting.

we said our goodbyes and set off