[countable] an upper limit on an amount of money that can be spent, borrowed or charged（可用的、可借的、可收取款项的）最高限额◆The government has put a cap on local council spending.政府给地方议会的经费开支规定了最高限额。◆Domestic electricity consumers (= families that use electricity) are protected by a price cap.家用电力用户（用电家庭）受到最高限价的保障。⨁to impose / put / set a cap on sth对某事采取／规定／设定最高限额 (Stock Exchange 证券交易(所)) (informal) [uncountable; singular] a short way of saying or writing capitalization (= the amount of money that shareholders have invested in a company by buying shares) capitalization 的简称（股东通过购买股票投资于公司的金额）◆The company has a market cap of $30 million.公司的市场资本总值为 3 000 万元。 large cap mid cap small cap