noun A small circular band, typically of precious metal and often set with one or more gemstones, worn on a finger as an ornament or a token of marriage, engagement, or authority. (a diamond ring) A ring-shaped or circular object. (fried onion rings) An enclosed space, surrounded by seating for spectators, in which a sport, performance, or show takes place. (a circus ring) A group of people drawn together due to a shared interest or goal, especially one involving illegal or unscrupulous activity. (the police had been investigating the drug ring) another term for closed chain A set of elements with two binary operations, addition and multiplication, the second being distributive over the first and associative.
noun An act of causing a bell to sound, or the resonant sound caused by this. (there was a ring at the door)
verb Make a clear resonant or vibrating sound. (a bell rang loudly) Call by telephone. (I rang her this morning) (of a person's ears) be filled with a continuous buzzing or humming sound, especially as the aftereffect of a blow or loud noise. (he yelled so loudly that my eardrums rang)