bye noun - Definition, pictures, pronunciation and usage notes
https://www.oxfordlearnersdictionaries.com/definition/english/bye_2
WEB(informal) used to introduce a comment or question that is not directly related to what you have been talking about. By the way, I found that book you were looking for. What's the time, by the way? Oh by the way, if you see Jackie, tell her I'll call her this evening. See bye in the Oxford Advanced American Dictionary. Check pronunciation: bye.
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