Noun

• S: (n) motivation, motive, need (the psychological feature that arouses an organism to action toward a desired goal; the reason for the action; that which gives purpose and direction to behavior) "we did not understand his motivation"; "he acted with the best of motives"
• S: (n) motivation (the condition of being motivated) "his motivation was at a high level"
• S: (n) motivation, motivating (the act of motivating; providing incentive)