Campaign

Part of speech: noun (n.)

1. An open field; a large, open plain without considerable hills. SeeChampaign. Grath.

2. 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. The period during which a blast furnace is continuously in operation.

Part of speech: verb (v.)

To serve in a campaign.