What is the meaning of campaigning?

noun

• The campaign of a candidate to be elected.
  • synonyms: candidacy, candidature, electioneering, political campaign

verb

• Run, stand, or compete for an office or a position.
  • usage: "Who's running for treasurer this year"
  • synonyms: campaign, run
• Exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for.
  • usage: "The liberal party pushed for reforms"; "She is crusading for women's rights"; "The Dean is pushing for his favorite candidate"
  • synonyms: crusade, fight, press, campaign, push, agitate
• Go on a campaign; go off to war.
  • synonyms: campaign, take the field