›[I or T, + adv/prep]to make something or yourself smaller to fit into a small space: The cat was hiding, scrunched up under the sofa.Not holding the body uprightRecliningMaking things more or less smooth or straight›[I or T, usually+ adv/prep]to make your face or part of your face into a tight shape in order to show an emotion, or to go into a tight shape that expresses an emotion: He was red with anger and his face was all scrunched up.Grimacing and frowning