Longman Dictionary of Contemporary English - request

~1 n 1 a polite or formal demand for something + for  (They have made an urgent request for international aid.) ~ that  (He ignored the neighbours' requests that he should make less noise.) at sb's ~ (=because they asked you to)  (I telephoned her in Paris, at Staunton's request.) on ~ (=when you ask for it)  (Further details will be sent on request.) by ~ (=because someone has especially asked for it)  (There were no flowers at the funeral, by request.) any ~s? spoken (=used to ask people if they want anything)  (I'm going to the bar - any requests?) 2 a piece of music that is played on the radio because someone has asked for it ~2 v 1 formal to ask for something politely or formally  (I wrote them a letter, officially requesting permission to proceed.) ~ that  (The staff immediately requested that he reconsider his decision) ~ sb to do sth  (All club members are requested to attend the annual meeting.) 2 to ask for a particular piece of music to be played on the radio  (This song was requested by Mrs Simpson of Potters Bar.)  ( USAGE NOTE: REQUEST WORD CHOICE ask (for), ~, demand Ask is the usual word for speaking or writing to someone in order to get something done I asked one of my friends to help me. You use ask for when you are trying to get something I asked for help. Request is more formal and official. Also if you request something, often you have the right to get what you are asking for The letter politely requested that Miss Willis present herself for interview the next day. | The government has requested a meeting with community leaders. Demand is even stronger. If you demand something, you feel strongly that you have the right to it I demand to see the manager! GRAMMAR You request something (NOT ~ for sth). But you do use for with the n requests for money (NOT requests of money). )