omen UK /ˈəʊ̯mən/US /ˈoʊ̯mən/noun 2verb 2forms 3phrases 1 noun2 •Something which portends or is perceived to portend either a good or evil event or circumstance in the future, or which causes a foreboding; a portent or augury.The ghost's appearance was an ill omen.A rise in imports might be an omen of economic recovery. •A thing of prophetic significance.A sign of ill omen. verb2 •To be an omen of. •To divine or predict from omens. formsomened · omening · omens Phrases with omen bird of ill omenA person who brings bad news.