Character Dictionary
Kanji Dictionary
noun
Letter rules can be found in a character dictionary. In Japanese, one kanji "letter" or "character" can hold a lot of information, so you have dictionaries dedicated to kanji meanings. That's what this is.
This word is a little old-fashioned these days, so you might also see 漢字辞典 used for a character dictionary. (You'll learn 辞典 soon, if you haven't already!)
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
英和字典
English-Japanese dictionary
漢和字典
kanji and kanji compound dictionary with Japanese definitions
漢字字典
kanji dictionary
コウイチは、ぬれた字典について、ビエトにせつ明を要求しました。
Koichi demanded an explanation about the wet character dictionary from Viet.
とつ然大雨になったので、手でもっていた字典がびしょぬれになっちゃったんです。
It suddenly started pouring rain and the kanji dictionary I was holding got soaking wet.
この書道字典はあそこの古本屋で買ったんです。
I bought this calligraphy character dictionary at a secondhand bookstore over there.