/ˈstreɪtn ||; ˈstretṇ/verb [I,T] straighten (sth) (up/out) to become straight or to make sth straight （使）直，平正: The road straightens out at the bottom of the hill. 那条路到了山脚就变直。 [T] to straighten your tie 将领带弄正 straighten sth out to remove the confusion or difficulties from a situation 整顿；解决问题或困难 straighten up to make your body straight and vertical 挺直身子