1. To renounce or to withdraw a legal position on an issue: Jason decided to disclaim his request through the courts that the city pave his driveway.
2. To refuse to admit something believed by another individual or to reject authority: Students were disclaiming the expectations of the campus authority, determined to decide for themselves if they would go to class on Saturday or not.

Despite the testimony of the eyewitness, Mark disclaimed any responsibility for the accident that took place on the highway.

Has Bill Gates disclaimed that he is the wealthiest person in the world?