Added 10 October 2026 jaybird noun Categories: AnimalsObscure Words noun ! Definition from WordNet 3.1, Princeton University. More about jaybird at Wordnik → Where our words come from → Common jay of eastern North America; bright blue with grey breast. Origin From jay + bird. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: bluejayjaypiejarbird Back to today's word