The use of can to ask or grant permission has been common since the 19th century and is well established, although some feel may is more appropriate in formal contexts. May is relatively rare in … Can is usually used in standard spoken English when asking for permission. It is acceptable in most forms of written English, although in very formal writing, such as official instructions, may is often … CAN definition: to be able to; have the ability, power, or skill to. See examples of can used in a sentence. You use can to indicate that someone has the ability or opportunity to do something. Don't worry yourself about me, I can take care of myself. I can't give you details because I don't actually have any … Define can. can synonyms, can pronunciation, can translation, English dictionary definition of can. to be able to, have the power or skill to: I can take a bus to the airport. Definition of CAN in the Definitions.net dictionary. Information and translations of CAN in the most comprehensive dictionary definitions resource on the web. Used to indicate possession of a specified power, right, or privilege. The president can veto congressional bills. 2 days ago · The present tense negative can not is usually contracted to cannot (more formal) or can’t (less formal). The use of can in asking permission is sometimes criticized as being impolite or ….