[noun] a particular environment or walk of life; "his social sphere is limited"; "it was a closed area of employment"; "he's out of my orbit" Synonyms:sphere, area, orbit, field, arena
[noun] territory over which rule or control is exercised; "his domain extended into Europe"; "he made it the law of the land" Synonyms:demesne, land
[noun] the set of values of the independent variable for which a function is defined
[noun] people in general; especially a distinctive group of people with some shared interest; "the Western world" Synonyms:world
[noun] a knowledge domain that you are interested in or are communicating about; "it was a limited domain of discourse"; "here we enter the region of opinion"; "the realm of the occult" Synonyms:region, realm
