1. to suppose something is true without proof; to assume
2. to take liberties; to act boldly or rudely without permission

Examples

• I presume you’ve already eaten dinner.
• The detective presumed the suspect was guilty based on the evidence.
• Don’t presume to tell me what to do.
• She presumed to speak for the entire group without asking.
• We can presume that the meeting will start on time.
• I wouldn’t presume to give advice on such a personal matter.
• The lawyer presumed his client’s innocence throughout the trial.