(informal)(of a person) use long and obscure words when speaking(非正式)（說話時）使用又長又晦澀的詞語
柯林斯高階英漢雙解學習詞典釋義
N-COUNT
詞典;字典;辭書
A dictionary is a book in which the words and phrases of a language are listed alphabetically, together with their meanings or their translations in another language.