Urge
Part of speech: noun
Definition: A strong desire; an itch to do something.
Part of speech: verb
Definition: To press; to push; to drive; to impel; to force onward. To press the mind or will of; to ply with motives, arguments, persuasion, or importunity. To provoke; to exasperate. To present in an urgent manner; to insist upon. To treat with forcible means; to take severe or violent measures with; as, to urge an ore with intense heat. To press onward or forward. To be pressing in argument; to insist; to persist.
Example sentence: The will to win, the desire to succeed, the urge to reach your full potential... these are the keys that will unlock the door to personal excellence.
Impulse
Part of speech: noun
Definition: A wish or urge, particularly a sudden one.The integral of force over time.
Example sentence: The impulse to cruelty is, in many people, almost as violent as the impulse to sexual love - almost as violent and much more mischievous.