●set sth on ˈfire1. ( set ˈfire to sth) make sth start burning because you want to destroy or damage it（为破坏某物而）点燃，纵火◆Three youths were accused of setting the house on fire. 三名青年被指控纵火焚烧那所房子。◆Demonstrators had set fire to vehicles and equipment. 示威人群点着了车辆和设备。2.make sb/sth very interested or excited引起…的极大兴趣；点燃…的激情◆Her new book has really set the literary critics on fire. 她的新书确实引发了文学评论界的热烈讨论。