To determine, declare, or mark the limit of; circumscribe; determine or indicate the bounds or outlines of with precision; mark or set out clearly: as, to define the extent of a kingdom or country.To fix, establish, or prescribe authoritatively: as, to define the duties of an officer.To state the signification of; explain what is expressed by (a word, a phrase, etc.); state the nature or essential properties of: as, to define virtue; define your meaning more clearly.To determine; settle; decide.To determine; decide; give judgment.To state a definition.