harbor, harbour - a place of refuge and comfort and security

safehold - a refuge from attack

safe house - a house used as a hiding place or refuge by members of certain organizations

shelter - a structure that provides privacy and protection from danger

booby hatch, crazy house, cuckoo's nest, funny farm, funny house, loony bin, madhouse, nut house, nuthouse, sanatorium, snake pit, Bedlam - pejorative terms for an insane asylum

hospital, infirmary - a health facility where patients receive treatment