on the side 1. 〈美〉作为兼职，正事以外；〈英〉作为副业 His job at the hospital did not pay much, so he found another on the side. 他在医院工作的工资不高，所以他另外找了个兼职工作。 He makes a little money on the side by not reporting all his income to the taxman. 他通过对税务员隐瞒部分收入的做法捞取少量外快。 2. 〈美〉作为配菜 order a hamburger with onions on the side 叫个加有洋葱的汉堡包 3. 私下，秘密地 I'm telling you this on the side. 我私下告诉你这事。