interjection / noun
goodbye
A word or act used when leaving or parting.
She waves from the doorway and calls out goodbye.
Etymology
Goodbye contracts the farewell blessing God be with ye. Repeated everyday use compressed the phrase into a conventional word for taking leave.
More examples
- We say goodbye before boarding separate trains.
- He gives his friends a quick goodbye.
- Our family goodbyes always take a long time.
Forms
goodbye · goodbyes