look up 1. 抬头望 I looked up and saw her. 我抬起头来看见了她。 2. 好转，改善 The national economy is beginning to look up. 国民经济正在开始好转。 Things are looking up now. 现在情况正在改善。 3. 〈口〉(尤指多时不见之后) 看望，拜访 I want to look up an old friend. 我想去拜访一个老朋友。 Look me up when you are next in the area. 下次来本地区时，欢迎过来。 4. (在词典、参考书等中) 查检 look up new words (the meaning of a new word) in a dictionary 翻词典查新词 (一个新词的意义) I shall look up Smith's number in the directory. 我将翻电话簿查一下史密斯的电话号码。