Effort
Part of speech: noun
Definition: The amount of work involved in performing an activity; exertion. An endeavour.
Example sentence: A garden requires patient labor and attention. Plants do not grow merely to satisfy ambitions or to fulfill good intentions. They thrive because someone expended effort on them.
Campaign
Part of speech: noun
Definition: A series of operations undertaken to achieve a set goal; as, an election campaign, a military campaign, an advertising campaign.
Part of speech: verb
Definition: To take part in a campaign.
Example sentence: A national political campaign is better than the best circus ever heard of, with a mass baptism and a couple of hangings thrown in.