arena vs sphere

sphere vs arena

arena and sphere both are nouns.

Word	Noun	Adjective	Verb	Adverb
arena	Yes	No	No	No
sphere	Yes	No	No	No

As nouns, arena and sphere are synonyms defined as:

arena and sphere: a particular environment or walk of life

Other synonyms of arena include area, domain, field, orbit.

arena (noun)	sphere (noun)
a playing field where sports events take place	any spherically shaped artifact
a large structure for open-air sports or entertainments	a particular aspect of life or activity
the central area of an ancient Roman amphitheater where contests and spectacles were held; especially an area that was strewn with sand	the geographical area in which one nation is very influential
a particular environment or walk of life	the apparent surface of the imaginary sphere on which celestial bodies appear to be projected
	a solid figure bounded by a spherical surface (including the space it encloses)
	a three-dimensional closed surface such that every point on the surface is equidistant from the center
	a particular environment or walk of life

Difference between arena and sphere

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