competence, competency (noun)
the quality of being adequately or well qualified physically and intellectually
sphere, domain, area, orbit, field, arena (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"
domain, demesne, land (noun)
territory over which rule or control is exercised
"his domain extended into Europe"; "he made it the law of the land"
domain, domain of a function (noun)
(mathematics) the set of values of the independent variable for which a function is defined
world, domain (noun)
people in general; especially a distinctive group of people with some shared interest
"the Western world"
knowledge domain, knowledge base, domain (noun)
the content of a particular field of knowledge
tenure, term of office, incumbency (noun)
the term during which some position is held
a duty that is incumbent upon you
the office of an incumbent