sphere.
A surface in three dimensions consisting of all points equidistant from a center. .
Meaning & usage
A surface in three dimensions consisting of all points equidistant from a center. .
An object which appears to be bounded by a sphere; a round object, a ball.
The celestial sphere: the edge of the heavens, imagined as a hollow globe within which celestial bodies appear to be embedded.
Any of the concentric hollow transparent globes formerly believed to rotate around the Earth, and which carried the heavenly bodies; there were originally believed to be eight, and later nine and ten; friction between them was thought to cause a harmonious sound (the music of the spheres).
An area of activity for a planet; or by extension, an area of influence for a god, hero etc.
The region in which something or someone is active; one's province, domain.
sphere of influence
The natural, normal, or proper place (of something).
in one's sphere
The set of all points in three-dimensional Euclidean space (or n-dimensional space, in topology) that are a fixed distance from a fixed point .
The domain of reference of a proposition, subject, or predicate, or the totality of the particular subjects to which it applies.
A food preparation comprising a flavorful liquid treated by spherification to produce spheres.
Where this word comes from
Etymology tree Ancient Greek σφαῖρᾰ (sphaîră)bor. Latin sphaera Late Latin sphērader. Old French spherebor. Middle English spere English sphere From Middle English spere, from Old French sphere, from Late Latin sphēra, earlier Latin sphaera (“ball, globe, celestial sphere”), from Ancient Greek σφαῖρα (sphaîra, “ball, globe”), of unknown origin. Not related to superficially similar Persian سپهر (sepehr, “sky”) . Displaced Old English cliewen, þoþor, and æppel.
To place in a sphere, or among the spheres; to ensphere.
To make round or spherical; to perfect.
Where this word comes from
Etymology tree Ancient Greek σφαῖρᾰ (sphaîră)bor. Latin sphaera Late Latin sphērader. Old French spherebor. Middle English spere English sphere From Middle English spere, from Old French sphere, from Late Latin sphēra, earlier Latin sphaera (“ball, globe, celestial sphere”), from Ancient Greek σφαῖρα (sphaîra, “ball, globe”), of unknown origin. Not related to superficially similar Persian سپهر (sepehr, “sky”) . Displaced Old English cliewen, þoþor, and æppel.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.