If you say that someone is looking forward to something useful or positive, you mean they expect it to happen. Motor traders are looking forward to a further increase in vehicle sales
If you look forward to something that is going to happen, you want it to happen because you think you will enjoy it. He was looking forward to working with the new Prime Minister
[ t&, tu, 'tü ] (preposition.) before 12th century. Middle English, from Old English tO; akin to Old High German zuo to, Latin donec as long as, until.