English definition of “ought”
/ɔːt/ modal verb
ought to do sth › used to say or ask what is the correct or best thing to do: We ought to tidy up before we go. You ought to see a doctor. He ought to have told her the truth. Ought I to phone her?
ought to be/do sth › used to say that you expect something to be true or that you expect something to happen: She ought to be home by seven. He ought to pass the exam this time.