<p><strong>Noun</strong></p><ul><li>the competition by rival political candidates and organizations for public office.</li><li>a systematic course of aggressive activities for some specific purpose: a sales campaign.<ul><li>Synonyms: offensive, push, effort, drive</li></ul></li><li>Military. military operations for a specific objective.</li><li>Obsolete. the military operations of an army in the field for one season.</li><li>a story in a role-playing game, spread out over multiple play sessions, that usually keeps the same plot, setting, or main characters: Last week we finished our campaign and I already miss it.</li></ul><p><strong>Verb</strong></p><ul><li>(used without object)<ul><li>to serve in or go on a campaign: He planned to campaign for the candidate.</li><li>My daughter has been campaigning for a later curfew for months.</li></ul></li><li>(used with object)<ul><li>to race (a horse, boat, car, etc.) in a number or series of competitions.</li></ul></li></ul>