A more thorough explanation:

Definition: To make something false; to counterfeit or forge.

Example 1: The student falsified his report card by changing his grades.

Example 2: The company was caught falsifying their financial statements to make it look like they were making more money than they actually were.

Explanation: Falsifying means to make something false or fake. In example 1, the student changed his grades to make it look like he did better in school than he actually did. In example 2, the company changed their financial statements to make it look like they were more successful than they actually were. Both examples show how someone can falsify something to deceive others.