[C] flat fold stitched into a garment, etc to make it smaller or for ornament （衣服等的）褶, ?: put in/take out a tuck in a dress 在连衣裙上加上[去掉]一个褶. 
[U] (Brit infml esp dated 口, 尤作旧) food, esp sweets, cakes, pastry, etc that children enjoy 儿童喜爱的食物（尤指糖果﹑ 糕饼﹑ 香酥点心等）: [attrib 作定语] a school tuck-shop 校内食品小卖部.