Added 9 October 2026 backyard /bækˈjɑːd/ noun Categories: ThingsRare Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about backyard at Wordnik → Where our words come from → The grounds in back of a house. Origin From back + yard. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: patioyardparkcourtyardcourtdoorcasahouselawnplaygroundgroundhome Back to today's word