Campaign

a race between candidates for elective office

a series of actions advancing a principle or tending toward a particular end

several related operations aimed at achieving a particular goal (usually within geographical and temporal constraints)

an overland journey by hunters (especially in Africa)

run, stand, or compete for an office or a position

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

go on a campaign; go off to war