The term BAR IN A CAGE can be solved by the crossword solutions ROOST (5 letters), PERCH (5 letters), and RIB (3 letters). ROOST is a noun that refers to a place where birds rest or sleep, while PERCH is a verb meaning to settle or rest on a branch or other elevated surface. Finally, RIB is a noun that refers to any of the curved bones that form the RIB cage in humans and other vertebrates. Together, these three words describe a bar in a cage, which is an enclosure used to contain animals or birds.