sum·mon/`sʌmən; ˈsʌmən/ v [T] formal 【正式】 1 to officially order someone to come to a particular place 召唤,召见,传唤: summon sb to sth I was summoned to the principal's office. 我被召去校长办公室。 2 also 又作 summon up if you summon your courage, strength etc, you try to be brave, strong etc even though it is difficult 鼓起〔勇气〕; 使出〔力气〕: Tom summoned up his courage to ask Kay for a date. 汤姆鼓起勇气约会凯。