rin·con \riŋˈkōn\noun (pluralrincons \-ōnz\ ; orrinco·nes \-ōˌnās\) Etymology: Spanish rincón, literally, corner, nook, alteration of recón, rencón, from Arabic dialect (Spain) rukun (Arabic rukn) 1.Southwest: a small secluded valley 2.Southwest: an alcove or angular recess in a cliff 3.Southwest: a bend in a river