Noun

• S: (n) campaign (campaign%1:04:02::), cause (cause%1:04:01::), crusade (crusade%1:04:00::), drive (drive%1:04:02::), movement (movement%1:04:03::), effort (effort%1:04:03::) (a series of actions advancing a principle or tending toward a particular end) "he supported populist campaigns"; "they worked in the cause of world peace"; "the team was ready for a drive toward the pennant"; "the movement to end slavery"; "contributed to the war effort"
• S: (n) Crusade (crusade%1:04:01::) (any of the more or less continuous military expeditions in the 11th to 13th centuries when Christian powers of Europe tried to recapture the Holy Land from the Muslims)

Verb

• S: (v) crusade (crusade%2:41:10::), fight (fight%2:41:10::), press (press%2:41:12::), campaign (campaign%2:41:10::), push (push%2:41:10::), agitate (agitate%2:41:10::) (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) "The liberal party pushed for reforms"; "She is crusading for women's rights"; "The Dean is pushing for his favorite candidate"
• S: (v) crusade (crusade%2:33:00::) (go on a crusade; fight a holy war)