To decide or settle (a dispute, for example) conclusively and authoritatively. To end or decide, as by judicial action. To establish or ascertain definitely, as after consideration, investigation, or calculation. See Synonyms at discover. To cause (someone) to come to a conclusion or resolution. To be the cause of; regulate: Demand determines production. To give direction to: The management committee determines departmental policy. To limit in scope or extent. Mathematics To fix or define the position, form, or configuration of. Logic To explain or limit by adding differences. Law To put an end to; terminate. To reach a decision; resolve. See Synonyms at decide. Law To come to an end.