presumption presumption presumptions 1 [N-COUNT] A presumption is something that is accepted as true but is not certain to be true. 　・ ...the presumption that a defendant is innocent until proved guilty... = assumption 2 [N-UNCOUNT] disapproval If you describe someone's behaviour as presumption, you disapprove of it because they are doing something that they have no right to do. (FORMAL) 　・ They were angered by his presumption.

presumption presumption presumptions 1 [N-COUNT] A presumption is something that is accepted as true but is not certain to be true. 　・ ...the presumption that a defendant is innocent until proved guilty... = assumption 2 [N-UNCOUNT] disapproval If you describe someone's behaviour as presumption, you disapprove of it because they are doing something that they have no right to do. (FORMAL) 　・ They were angered by his presumption.