1 noun in wartime etclándorchú mascblackout blindsdallóga lándorchaithe2 noun power failurecliseadh cumhachtathere was an electricity blackout this morningtheip ar an leictreachas ar maidin3 noun of informationcosc masc1 c m uthe government imposed a blackout on any reporting from the areachuir an rialtas cosc ar aon tuairisciú ón gceantar4 noun of consciousness, memorymeirfean masc1 c m ufanntais fem2 c m ushe suffers from blackoutsbíonn sí ag titim i bhfanntais, tagann meirfin uirthi