1o_ Thin and rigid sheet, especially metal. 2o_ Many of the objects made with a 'sheet' take their name, such as the nameplates, the locks (for their moving parts in the paddle key?) , prefabricated roof enclosures, metal bottle caps, . . . 3o_ By the badges of identification (such as those of police or those of professionals at the door of their houses ) it is said that something has 'chapa' when it has authority and prestige. 4o_ Third (as 'he / ella' ) person in singular of the present indicative mode , and second (as 'you' ) person in singular of the imperative for the verb chapar . View verbs/sheet .