1. To change something in order to make it appear different from the facts or the truth: Samuel doctored the costs of the items in an effort to earn more money.

Bill and Dana were accused of doctoring the company's financial records.

2. To add something; especially, a drug, alcohol, or poison, to food or drink: Yvonne suspected that someone at the party doctored the punch.
3. To treat people when they are ill; such as, medical treatment to an injury, a person, etc.: Ted's mother doctored her little girl's injury until the medical people arrived.
4. To fix something; especially, in a rough or hurried way: Kelly was doctoring the hole in the roof of his house until he could get professional carpenters to fix it properly.