Dictionary

(physical) A solid object in the shape of a circle.

(physical) A group of objects arranged in a circle.

A piece of food in the shape of a ring.

Example: onion rings

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.

To enclose or surround.

Example: The inner city was ringed with dingy industrial areas.

To make an incision around; to girdle.

Example: They ringed the trees to make the clearing easier next year.

To attach a ring to, especially for identification.

Example: We managed to ring 22 birds this morning.

To surround or fit with a ring, or as if with a ring.

Example: to ring a pig’s snout

The resonant sound of a bell, or a sound resembling it.

Example: The church bell's ring could be heard the length of the valley.

A pleasant or correct sound.

Example: The name has a nice ring to it.

A sound or appearance that is characteristic of something.

Example: Her statements in court had a ring of falsehood.

A telephone call.

Example: I’ll give you a ring when the plane lands.

Of a bell, etc., to produce a resonant sound.

Example: The bells were ringing in the town.

To make (a bell, etc.) produce a resonant sound.

Example: The deliveryman rang the doorbell to drop off a parcel.

To produce (a sound) by ringing.

Example: They rang a Christmas carol on their handbells.

To produce the sound of a bell or a similar sound.

Example: Whose mobile phone is ringing?

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.

Example: The set of integers, \mathbb{Z}, is the prototypical ring.

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.

Example: The definition of ring without unity allows, for instance, the set 2\mathbb{Z} of even integers to be a ring.