- of course
- of 'courseW1S1 adv1.) used to show that other people probably already know what you are saying is true, or expect to hear it▪ Well, she won, of course.▪ You should of course keep copies of all your correspondence.▪ Of course there will be some difficult times ahead.2.) spoken also course informalused to emphasize that you are saying 'yes' when someone asks your permission to do something▪ 'Can I ring you back in a minute?' 'Yes, of course.'▪ 'Is it OK if I have another cup of coffee?' 'Course, help yourself.'3.) spoken also course informalused to emphasize that what you are saying to someone is true or correct▪ 'Do you really believe her?' 'Of course I do!'▪ 'I hope this idea of yours works.' 'Course it'll work.'4.) spoken used to show that you accept or agree with what someone has just said▪ 'Don't get angry. She's only thirteen.' 'Of course.'▪ 'The correct answer is 83.' 'Oh, yes, of course.'5.) of course not/course notspoken used to emphasize that you are saying 'no' to something▪ 'Have you been reading my e-mail?' 'Of course not!'▪ 'Do you mind if I bring a friend?' 'No, of course not.'▬▬▬▬▬▬▬POLITENESSUse of course as a polite and friendly way of agreeing to something : 'Can I borrow your pen?'- 'Of course'. | Of course I'll help you. | 'Do you mind if I smoke?' - 'Of course not'.Do not use of course as a reply when someone asks you for information, because this can sound rude and unfriendly. If, for example, you asked someone : 'Is this the Swallow Hotel?' and they said |'Of course it is' it would sound as though they thought the answer was obvious and that you were stupid to ask them.▬▬▬▬▬▬▬
Dictionary of contemporary English. 2013.