- 1 in addition; more than is usual or expected, or than exists already to charge/pay/cost extra We don't charge extra for the activities—everything is included in the admission fee. I need to earn a little extra this month. The rate for a room is $75, but breakfast is extra. Now even bigger! Ten percent extra!
- 2(with an adjective or adverb) more than usually You need to be extra careful not to make any mistakes. an extra large T-shirt She tried extra hard. Do you have this sweatshirt in an extra large size? He wanted to cook something extra special for dinner that night.