Added 9 October 2026 dinnertime noun Categories: TimeRare Words noun ! Definition from WordNet 3.1, Princeton University. More about dinnertime at Wordnik → Where our words come from → The customary or habitual hour for the evening meal. Origin From dinner + time. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: suppertimediningdinnerdinesupperdinerluncheonlunchdinner-hourdins Back to today's word