Synonyms of the word

annulus

• n. A ring- or donut-shaped area or structure.
• n. (geometry) The region in a plane between two concentric circles of different radius.
• n. (topology) Any topological space homeomorphic to the region in a plane between two concentric circles…
• n. (astronomy) The ring of the sun not covered by the moon in an annular solar eclipse.
• n. (botany) Structure in a fern that consists of differentially thick-walled cells on a sporangium that bend…
• n. (mycology) The membranous remnants of a partial veil which leaves a ring on the stem of a mushroom.
• n. (oil and gas production) The space contained between the centre well bore and any external tubing. Sometimes…

doughnut

• n. A deep-fried piece of dough or batter, commonly of a toroidal (a ring doughnut) often mixed with various…
• n. Anything in the shape of a torus.
• n. (Canada, US) A peel-out or skid mark in the shape of a circle; a 360-degree skid.
• n. A spare car tyre, usually stored in the boot, that is smaller than a full-sized tyre and is only intended…

halo

• n. A circular band of coloured light, visible around the sun or moon etc., caused by reflection and refraction…
• n. (astronomy) A cloud of gas and other matter surrounding and captured by the gravitational field of a large…
• n. Anything resembling this band, such as an effect caused by imperfect developing of photographs.
• n. (religion) nimbus, a luminous disc, often of gold, around or over the heads of saints, etc., in religious…
• n. The metaphorical aura of glory, veneration or sentiment which surrounds an idealized entity.
• n. (medicine) A circular brace used to keep the head and neck in position.
• v. (transitive) To encircle with a halo.

ring

• n. (physical) A solid object in the shape of a circle.
• n. (physical) A group of objects arranged in a circle.
• n. A piece of food in the shape of a ring.
• n. A place where some sports or exhibitions take place; notably a circular or comparable arena, such as a…
• n. An exclusive group of people, usually involving some unethical or illegal practices.
• n. (chemistry) A group of atoms linked by bonds to form a closed chain in a molecule.
• n. (geometry) A planar geometrical figure included between two concentric circles.
• n. (typography) A diacritical mark in the shape of a hollow circle placed above or under the letter; a kroužek.
• n. (historical) An old English measure of corn equal to the coomb or half a quarter.
• n. (computing theory) A hierarchical level of privilege in a computer system, usually at hardware level,…
• n. (firearms) Either of the pair of clamps used to hold a telescopic sight to a rifle.
• v. (transitive) To surround or enclose.
• v. (transitive, figuratively) To make an incision around; to girdle.
• v. (transitive) To attach a ring to, especially for identification.
• v. (transitive) To surround or fit with a ring, or as if with a ring.
• v. (falconry) To rise in the air spirally.
• n. The resonant sound of a bell, or a sound resembling it.
• n. (figuratively) A pleasant or correct sound.
• n. (figuratively) A sound or appearance that is characteristic of something.
• n. (colloquial) A telephone call.
• n. Any loud sound; the sound of numerous voices; a sound continued, repeated, or reverberated.
• n. A chime, or set of bells harmonically tuned.
• v. (intransitive) Of a bell, to produce sound.
• v. (transitive) To make (a bell) produce sound.
• v. (intransitive, figuratively) To produce the sound of a bell or a similar sound.
• v. (intransitive, figuratively) Of something spoken or written, to appear to be, to seem, to sound.
• v. (transitive, colloquial, Britain, New Zealand) To telephone (someone).
• v. (intransitive) to resound, reverberate, echo.
• v. (intransitive) To produce music with bells.
• v. (dated) To repeat often, loudly, or earnestly.
• n. (algebra) An algebraic structure which consists of a set with two binary operations: an additive operation…
• n. (algebra) An algebraic structure as above, but only required to be a semigroup under the multiplicative…

toroid

• n. (mathematics) A surface generated by a closed curve (especially a circle) rotating about, but not intersecting…
• n. A ring-shaped object whose surface is a torus.