verb (used with object) [ma·nip·u·lat·ed, ma·nip·u·lat·ing.]
1. to manage or influence skillfully, especially in an unfair manner: to manipulate people’s feelings.
2. to handle, manage, or use, especially with skill, in some process of treatment or performance: to manipulate a large tractor.
3. to adapt or change (accounts, figures, etc.) to suit one’s purpose or advantage.