alcove UK /ˈæl.kəʊv/US /ˈæl.koʊv/noun 3verb 1forms 3 noun3 •A small recessed area set off from a larger room. •A shady retreat.The house was situated in a leafy alcove. •The geographical and geological term for a steep-sided hollow in the side of an exposed rock face or cliff of a homogeneous rock type, that was water eroded. verb1 •(rare) To furnish (something) with an alcove or to form an alcovelike recess. formsalcoved · alcoving · alcoves