bunch² also 又作 bunch togetherv [I,T] to stay close together in a group, or to make a group （使）聚成堆［群］: The children were bunched together by the door. 孩子们挤在门边。
bunch up if material bunches up, or if you bunch it up, it goes into tight folds （使）起褶: My skirt got all bunched up in the car. 我的裙子在车里皱成一团。