1 : a platform usually marked off by ropes in which contestants box or wrestle
2 : (chemistry) a chain of atoms in a molecule that forms a closed loop
3 : a strip of material attached to the leg of a bird to identify it (as in studies of bird migration)
4 : a rigid circular band of metal or wood or other material used for holding or fastening or hanging or pulling
1 : get or try to get into communication (with someone) by telephone