<p><strong>Noun</strong></p><ul><li>the act or function of guiding; leadership; direction.</li><li>advice or counseling, especially that provided for students choosing a course of study or preparing for a vocation.</li><li>supervised care or assistance, especially therapeutic help in the treatment of minor emotional disturbances.</li><li>something that guides.</li><li>the process by which the flight of a missile or rocket may be altered in speed and direction in response to controls situated either wholly in the projectile or partly at a base.</li></ul>