What does Campaign mean?
Camapaign refers to a large-scale advertising campaign concentrated in a specific market to achieve a major goal. It is a reflection of the decisive advertising idea and one of the strategies for market competition among enterprises.
Most advertising campaigns are serial. Only a few have the final result. The creative points that most advertising campaigns initially tap into are themselves sufficiently extensible.

Compaign means an activity, specifically a political or commercial activity, or a campaign.
The verb contains the meaning of fighting, participating in elections, joining the army, going to war, participating in (a certain) sports, participating in activities, participating in sports, engaging in sports, etc.