单词详解 

n.

词典，字典 (a reference book containing an alphabetical list of words with information about them)

This is a dictionary of English Idioms. 这是一本关于英语习语的词典。

相关词组

1. walking dictionary 活字典

We can ask her about it. She is a walking dictionary. 这方面我们可以问她。她是活字典。

2. look up a word in the dictionary  在字典中查一个词语

Students are asked to look up new words in a dictionary.

要求学生们在字典里查找生词。

相关单词

复数：dictionaries

同义词：lexicon, wordbook