sphere
n//sfɪə(ɹ)//sfär, klot, glob, fack, fält, gebit, klass, krets, kula
An object which appears to be bounded by a sphere; a round object, a ball. [from 14th c.]
(figuratively) The region in which something or someone is active; one's province, domain. [from 17th c.]
(logic, dated) The domain of reference of a proposition, subject, or predicate, or the totality of the particular subjects to which it applies.