一廓[ikkaku] one block
外廓[gaikaku] outer wall (e.g. castle)
城廓[joukaku] fortress
遊廓[yuukaku] red light district

輪廓[rinkaku] contour
廓清[kakusei] purification
廓詞[kuruwakotoba] sociolect or secret language used by prostitutes in red-light districts (Edo period)

垂迹[suijaku] temporary manifestation by a buddha (in order to save people)
筆迹[hisseki] handwriting
真迹[shinseki] true autograph

事迹[jiseki] evidence
本地垂迹説[honjisuijakusetsu] manifestation theory (holding that Shinto gods are manifestations of buddhas)
迹門[shakumon] first half of the Lotus Sutra, in which the Buddha appears as a spatiotemporally restricted being