·vi To serve in a campaign.
II. Campaign ·noun Political operations preceding an election; a canvass.
III. Campaign ·noun The period during which a blast furnace is continuously in operation.
IV. Campaign ·noun An open field; a large, open plain without considerable hills. SeeChampaign.
V. Campaign ·noun A connected series of military operations forming a distinct stage in a war; the time during which an army keeps the field.