Kanji are classified into two main categories:
* 表意文字 (moji), or ideographs, are characters that represent an idea or concept. For example, the kanji for "sun" is 日, which is a representation of the sun's rays.
* 表音文字 (on'yomi), or phonograms, are characters that represent a sound or syllable. For example, the kanji for "ka" is 加, which is a phonogram that represents the sound "ka."
Kanji are used in combination with two other types of characters in the Japanese writing system:
* Kana, which are phonetic characters that represent syllables.
* Rōmaji, which is the Latin alphabet.
Kanji are an important part of the Japanese writing system, and they add depth and richness to the language. They can be used to express complex ideas and emotions, and they can also be used to create puns and wordplay.