1 [C] (abbr oz) a measure of weight; 28.35 grams. There are 16 ounces in a pound. 盎司（重量单位，等于28.35克。一磅有16盎司）: For this recipe you need four ounces of flour. 照这个食谱说的，你需要用四盎司面粉。

2 [sing] an ounce of sth (usually in negative statements 通常用于否定陈述句) a very small amount of sth 少量；一点点: He hasn't got an ounce of imagination. 他一点想象力也没有。