龕燈[gandou] Buddhist altar light
龕燈返し[gandougaeshi] rotating stage machinery, which rolls backwards 90 degrees to reveal the next scene
壁龕[hekigan] niche (in Western architecture)

起龕[kigan] ceremonial removal of the coffin from the house (lay person) or temple (priest) (Zen Buddhism)
龕像[ganzou] Buddha figure carved into a rock
龕屋[ganya] place to store a body in a coffin before burial (Okinawa)