Dictionary
Lexicon
noun
You need to know the word rules of the language you're learning, don't you? Then you need a good dictionary that can explain its lexicon!
じてん
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
その辞典、使い終わったらちゃんと箱の中にもどしておいてね。
Can you put the dictionary back in the box after you use it?
電子辞書には色んな辞典が入っています。
An electronic dictionary has various dictionaries in it.
辞典の使い方が分かりません。
I don’t know how to use a dictionary.