sphere

Marbles, oranges, bubbles, and beach balls — all of these objects illustrate the shape of a sphere, or globe (unless the beach balls are under-inflated, in which case they’re sort-of a “squished-sphere” shape).

Sphere is often used metaphorically to refer to a particular aspect or area of something. For example, unless you’re a trained circus performer, tightrope walking and fire swallowing probably lie outside of your sphere of expertise. Sphere frequently occurs in the phrase “sphere of influence,” which designates the geographical area over which a person, organization, or nation has control. In many households, whoever is in charge of the cooking controls the kitchen; so, the kitchen falls within his or her sphere of influence.

Definitions of sphere
  1. noun
    a three-dimensional closed surface such that every point on the surface is equidistant from the center
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    type of:
    round shape
    a shape that is curved and without sharp angles
  2. noun
    any spherically shaped artifact
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    types:
    globe
    a sphere on which a map (especially of the earth) is represented
    celestial globe
    a globe that is a spherical model of the heavens
    type of:
    artefact, artifact
    a man-made object taken as a whole
  3. noun
    a solid figure bounded by a spherical surface (including the space it encloses)
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    types:
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    conglobation, conglomeration
    a rounded spherical form
    ball, globe, orb
    an object with a spherical shape
    bead, drop, pearl
    a shape that is spherical and small
    crystal ball
    a glass or crystal globe used in crystal gazing by fortunetellers
    camphor ball, mothball
    a small sphere of camphor or naphthalene used to keep moths away from stored clothing
    time-ball
    a ball that slides down a staff to show a fixed time; especially at an observatory
    fireball
    the luminous center of a nuclear explosion
    fireball
    a ball of fire (such as the sun or a ball-shaped discharge of lightning)
    globule
    a small globe or ball
    spherule
    a small sphere
    pellet
    a small sphere
    bolus
    a small round soft mass (as of chewed food)
    dewdrop
    a drop of dew
    teardrop
    anything shaped like a falling drop (as a pendant gem on an earring)
    type of:
    round shape
    a shape that is curved and without sharp angles
  4. noun
    the apparent surface of the imaginary sphere on which celestial bodies appear to be projected
    synonyms: celestial sphere, empyrean, firmament, heavens, vault of heaven, welkin
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    type of:
    surface
    the extended two-dimensional outer boundary of a three-dimensional object
  5. noun
    a particular aspect of life or activity
    synonyms: sector
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    types:
    department
    a specialized sphere of knowledge
    type of:
    aspect, facet
    a distinct feature or element in a problem
  6. noun
    a particular environment or walk of life
    “his social sphere is limited”
    synonyms: area, arena, domain, field, orbit
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    types:
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    distaff
    the sphere of work by women
    front
    a sphere of activity involving effort
    kingdom, land, realm
    a domain in which something is dominant
    lap
    an area of control or responsibility
    political arena, political sphere
    a sphere of intense political activity
    preserve
    a domain that seems to be specially reserved for someone
    province, responsibility
    the proper sphere or extent of your activities
    lotus land, lotusland
    an idyllic realm of contentment and self-indulgence
    lap of the gods
    beyond human control or responsibility
    ecclesiastical province
    the district within the jurisdiction of an archbishop or a metropolitan or one of the territorial divisions of an ecclesiastical order
    type of:
    environment
    the totality of surrounding conditions
  7. noun
    the geographical area in which one nation is very influential
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