case - the enclosing body all around a door or window opening; "the casings had rotted away and had to get replaced" You don't use 'On this case' to refer to a specific aspect of a thing. For example, you do not say 'Most of my close friends lost https://lorenzomneay.diowebhost.com/90719125/details-fiction-and-pay-someone-to-do-my-case-study