(n): the particular auditory effect produced by a given cause
(n): a toroidal shape
(n): the doughnut-shaped object enclosed by a torus
(n): a rigid circular band of metal or wood or other material used for holding or fastening or hanging or pulling
(n): a thin flat strip of flexible material that is worn around the body or one of the limbs (especially to decorate the body)
(n): (chemistry) a chain of atoms in a molecule that forms a closed loop
(n): (chemistry) a series of linked atoms (generally in an organic molecule)
(n): an association of criminals
(n): a formal organization of people or groups of people
(n): the sound of a bell ringing
(n): the sudden occurrence of an audible event
(n): a platform usually marked off by ropes in which contestants box or wrestle
(n): a raised horizontal surface
(n): jewelry consisting of a circlet of precious metal (often set with jewels) worn on the finger
(n): an adornment (as a bracelet or ring or necklace) made of precious metals and set with gems (or imitation gems)
(n): a strip of material attached to the leg of a bird to identify it (as in studies of bird migration)
(n): artifact consisting of a narrow flat piece of material
(v): sound loudly and sonorously
(v): make a certain noise or sound
(v): ring or echo with sound
(v): make a certain noise or sound
(v): make (bells) ring, often for the purposes of musical edification
(v): cause to sound
(v): get or try to get into communication (with someone) by telephone
(v): communicate over long distances, as via the telephone or e-mail
(v): extend on all sides of simultaneously; encircle
(v): be in direct physical contact with; make contact
(v): attach a ring to the foot of, in order to identify
(v): cause to be attached
Contronymic in the sense: ring in, trap vs. release, ring out, peal.