TEACH

[verb] [past:] taught - to give (someone) knowledge or to instruct or train (someone)She works in a bank and he teaches. [I]We have a shortage of people who can teach physics. [T]She taught English to foreign students. [T]He taught his children English/taught English to his children. [+ two objects]She was taught at home by her parents. [T]I could teach you what you need to know. [T + object + wh- word]I can't sew - I wish someone would teach me (how). [T or T + object + wh- word]Who taught you to cook? [T + object + to infinitive]Failing the test taught me to work harder. [T + object + to infinitive]Failing the test taught me that I needed to work harder. [T + object + (that) clause](US) Ever since she was a child her dream has been to teach school (= to be a teacher in a school).A person or experience that teaches you a lesson improves your future behaviour by making you experience the bad effects of your actions. Having my unlocked car stolen really taught me a lesson - I'll never do it again.He's always leaving his food out in the kitchen so I thought I'd teach him a lesson and I let the cat eat it.If someone says that they or an unpleasant experience will teach you (not) to do something, they mean that they will stop you from doing it in future by making you experience the bad effects of your action.So Roger spent the night in a freezing garage, did he? That'll teach him to (= show him that he should not) go out without his house keys!To teach your grandmother to suck eggs is to try to teach someone how to do something that they already know more about than you.(dated) A teach-in is a meeting for discussion on a subject of public interest, often held among college students.