延长 Traditional form: 延長 Pinyin (reading): yáncháng Definitions: to prolong to extend to delay Characters: 延 - to defer, to delay, to postpone; to extend, to prolong; surname 长 - long, lasting; to excel in Traditional characters: 延 - to defer, to delay, to postpone; to extend, to prolong; surname 長 - long, lasting; to excel in