تَعْتِيم: جَعْلُ الشّيْءِ مُعْتِماً darkening, dimming, obscuring, overcasting, blinding, clouding

تَعْتِيم (على): مَنْعٌ مِنَ الانْتِشَار blackout, suppression, hushing up

تَعْتِيمٌ خِلاَلَ غَارَةٍ جَوّيّة blackout

تَعْتِيمٌ جُزْئِيّ dim-out, incomplete blackout