Ring

1. (n) (physical) A solid object in the shape of a circle. 2. (n) A circumscribing object, (roughly) circular and hollow, looking like an annual ring, earring, finger ring etc. 3. (n) (jewelry) A round piece of (precious) metal worn around the finger or through the ear, nose, etc. 4. (n) (UK) A bird band, a round piece of metal put around a bird's leg used for identification and studies of migration. 5. (n) (UK) A burner on a kitchen stove. 6. (n) A piece of food in the shape of a ring. 7. (n) In a jack plug, the connector between the tip and the sleeve. 8. (n) (vulgar) The rectum, anus, or anal sphincters. 9. (n) (botany) A flexible band partly or wholly encircling the spore cases of ferns. 10. (n) (physical) A group of objects arranged in a circle. 11. (n) A circular group of people or objects. 12. (n) (astronomy) A formation of various pieces of material orbiting around a planet or young star. 13. (n) (British) A large circular prehistoric stone construction such as Stonehenge. 14. (n) A long stripe of contrastive material, colour, etc, that encircles something. 15. (n) A place where some sports or exhibitions take place; notably a circular or comparable arena, such as a boxing ring or a circus ring; hence the field of a political contest. 16. (n) The open space in front of a racecourse stand, used for betting purposes. 17. (n) An exclusive group of people, usually involving some unethical or illegal practices. 18. (n) (chemistry) A group of atoms linked by bonds to form a closed chain in a molecule. 19. (n) (geometry) A planar geometrical figure included between two concentric circles. 20. (n) (typography) A diacritical mark in the shape of a hollow circle placed above or under the letter; a kroužek. 21. (n) (computing theory) A hierarchical level of privilege in a computer system, usually at hardware level, used to protect data and functionality (also protection ring). 22. (n) (firearms) Either of the pair of clamps used to hold a telescopic sight to a rifle. 23. (n) (cartomancy) The twenty-fifth Lenormand card. 24. (n) (networking) A network topology where connected devices form a circular data channel. All computers on the ring can see every message, and there are no collisions, and a single point of failure will occur if any part of the ring breaks. 25. (v) (transitive) To enclose or surround. 26. (v) (transitive, figuratively) To make an incision around; to girdle; to cut away a circular tract of bark from a tree in order to kill it. 27. (v) (transitive) To attach a ring to, especially for identification. 28. (v) (transitive) To surround or fit with a ring, or as if with a ring. 29. (v) (falconry) To rise in the air spirally. 30. (v) (transitive) To steal and change the identity of (cars) in order to resell them. 31. (v) (Australia, transitive) To ride around (a group of animals, especially cattle) to keep them milling in one place; hence (intransitive), to work as a drover, to muster cattle. 32. (n) The resonant sound of a bell, or a sound resembling it. 33. (n) (figuratively) A pleasant or correct sound. 34. (n) (figuratively) A sound or appearance that is characteristic of something. 35. (n) (colloquial) A telephone call. 36. (n) Any loud sound; the sound of numerous voices; a sound continued, repeated, or reverberated. 37. (n) A chime, or set of bells harmonically tuned. 38. (v) (intransitive) Of a bell, etc., to produce a resonant sound. 39. (v) (transitive) To make (a bell, etc.) produce a resonant sound. 40. (v) (transitive) To produce (a sound) by ringing. 41. (v) (intransitive, figuratively) To produce the sound of a bell or a similar sound. 42. (v) (intransitive, figuratively) Of something spoken or written, to appear to be, to seem, to sound. 43. (v) (transitive, colloquial, British, Australia, New Zealand) To telephone (someone). 44. (v) (intransitive) to resound, reverberate, echo. 45. (v) (intransitive) To produce music with bells. 46. (v) To ring up (enter into a cash register or till) 47. (v) (dated) To repeat often, loudly, or earnestly. 48. (n) (algebra) An algebraic structure which consists of a set with two binary operations: an additive operation and a multiplicative operation, such that the set is an abelian group under the additive operation, a monoid under the multiplicative operation, and such that the multiplicative operation is distributive with respect to the additive operation. 49. (n) (algebra) An algebraic structure as above, but only required to be a semigroup under the multiplicative operation, that is, there need not be a multiplicative identity element. 50. (n) (mathematical analysis, measure theory) A family of sets that is closed under finite unions and set-theoretic differences. 51. (n) (mathematics, order theory) A family of sets closed under finite union and finite intersection. 52. (n) (historical) An instrument, formerly used for taking the sun's altitude, consisting of a brass ring suspended by a swivel, with a hole at one side through which a solar ray entering indicated the altitude on the graduated inner surface opposite. 53. (n) (historical) An old English measure of corn equal to the coomb or half a quarter. 54. (n) A surname originating as an occupation for a maker of rings as jewelry or as in harness. 55. (n) A parish of County Waterford, Ireland. 56. (n) An unincorporated community in the town of Nekimi, Winnebago County, Wisconsin, United States. 57. (n) (Internet) Ellipsis of webring. [(Internet, dated) A collection of related websites which are interlinked in a circular structure, each site having links to the previous and next site in the ring.]