plural spheres
1
a
: a round object : globe
a glass sphere
b
geometry
: a three-dimensional shape that looks like a ball
All points on a sphere are the same distance from the center.
2
somewhat formal
: an area of influence or activity
Women at that time were confined to the domestic sphere.
They recognize that jobs in the public/private sphere are valuable.
The region has moved back and forth between Spanish and Portuguese spheres of influence. [=has been under the control or influence of Spain and Portugal at different times]
Cite this Entry
“Sphere.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/sphere. Accessed 20 Jun. 2026.
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