1. on [preposition] 1 in contact with a surface or line: There’s something on you chin. 2 With time expressions: I’ll see you on Sunday. [adverb] connected, or continuing, or goin forward: Who left the lights on? Grammar patterns 1. Cambridge is a city on the river Cam. 2. I’m depending on you to help with the driving. 3. At least we agree on one thing. ~ The cost. 4. Why waste money on a taxi when we can walk. 5. Can you hold on a minute, and I’ll het him. 6. You can’t go on pretending you love her. 7. Can I try on these jeans? 8. We cheered our team on.

2. on Collocations  Catch on, go on, move on, keep on, press on, push on, stay on, sign on.  Hand on, put on, pass on, switch or turn on, take on, try on  On board, foot, disk, line, the phone, TV, the radio, strike, time, business, duty, call, holiday, track, the way, purpose, sale, loan, fire, ice, tap, a diet.  Keen on, tough on, dependent on, based on.

3. on Set phrases 1. on and on: The lecture went on and on and I nearly fell asleep. 2. What’s goin on? What’s going on? Why aren’t you ready yet? 3. What’s on …at? What’s on at the Tivoli? ~Terminator II. 4. Have a lot on/have nothing on = be very busy/have nothing planned. e.g. What’s he doing this evening? ~ nothing. ~ He hasn’t anything on. 5. Straight on = continuing in the same direction: Drive straight on until you come to a gas station.