Cam*paign" (?), n. [F. campagne, It. campagna, fr. L. Campania the level country about Naples, fr. campus field. See Camp, and cf. Champaign, Champagne.] 1. An open field; a large, open plain without considerable hills. SeeChampaign. Grath.

2. (Mil.) A connected series of military operations forming a distinct stage in a war; the time during which an army keeps the field. Wilhelm.

3. Political operations preceding an election; a canvass. [Cant, U. S.]

4. (Metal.) The period during which a blast furnace is continuously in operation.

Cam*paign" (?), v. i. To serve in a campaign.

• a series of operations undertaken to achieve a set goal; as, an election campaign, a military campaign, an advertising campaign
       The company is targeting children in their latest advertising campaign.
  
• to take part in a campaign
       She campaigned for better social security.