Ring

A circumscribing object, (roughly) circular and hollow, looking like an annual ring, earring, finger ring etc.

A round piece of (precious) metal worn around the finger.

A bird band, a round piece of metal put around a bird's leg used for identification and studies of migration.

migration

A piece of food in the shape of a ring, as in onion ring.

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.

An exclusive group of people, usually involving some unethical or illegal practices; as a crime ring, prostitution ring, etc.

A planar geometrical figure included between two concentric circles.

Burner.

A formation of various pieces of material orbiting around a planet.

A diacritical mark in the shape of a hollow circle placed above or under the letter; a kroužek.

An old English measure of corn equal to the coomb or half a quarter.

A large circular prehistoric stone construction such as Stonehenge.

A hierarchical level of privilege in a computer system, usually at hardware level, used to protect data and functionality (also protection ring).

In a jack plug, the connector between the tip and the sleeve.

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

A pleasant or correct sound.

A telephone call.

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.

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.

To surround or enclose.

To make an incision around; to girdle.

To attach a ring to, especially for identification.

To rise in the air spirally.

Of a bell, to produce sound; to make a bell produce sound.

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

Of something spoken or written, to appear to be, to seem, to sound.

To telephone someone.

To resound, reverberate, echo.