A more thorough explanation:

Definition:

Presume (verb): To believe something to be true without having proof or evidence.

Examples:

• She presumed that he was guilty without any evidence.
• He presumed that she would say yes to his proposal.
• They presumed that the meeting would be cancelled due to the weather.

Explanation: The word "presume" means to assume something to be true without any evidence or proof. In the examples given, each sentence shows a situation where someone is making an assumption without any concrete evidence. For instance, in the first example, the woman believes that the man is guilty without any proof. Similarly, in the second example, the man believes that the woman will say yes to his proposal without any indication from her. Finally, in the third example, the group believes that the meeting will be cancelled due to the weather without any official announcement.