1cam·paign 
/kæmˈpeɪn/ noun
plural cam·paigns /kæmˈpeɪn/ noun [count] 1 : a series of activities designed to produce a particular result
▪ an election campaign [=a campaign to win a political election] ▪ a presidential campaign ▪ The group launched/mounted/led a campaign to protect the area from commercial development. ▪ the campaign against drugs ▪ an expensive advertising campaign ▪ The university is organizing a campaign to attract a more diverse student population. — often used before another noun ▪ campaign contributions ▪ She kept/broke her campaign promises. ▪ a campaign slogan 2 : a series of military battles, attacks, etc., designed to produce a particular result in a war
▪ a bombing campaign
▪ an election campaign [=a campaign to win a political election] ▪ a presidential campaign ▪ The group launched/mounted/led a campaign to protect the area from commercial development. ▪ the campaign against drugs ▪ an expensive advertising campaign ▪ The university is organizing a campaign to attract a more diverse student population. — often used before another noun ▪ campaign contributions ▪ She kept/broke her campaign promises. ▪ a campaign slogan
▪ a bombing campaign
