Manyogana
For example, while the character 山 means "mountain" in Japanese, the character itself was usually used only for Chinese loanwords, or words borrowed from the Chinese language, such as 富士山 Fuji-san, meaning "Mt. Fuji”，火山kazan, meaning "volcano”，and 山村 sanson, meaning "mountain village". Words borrowed from the Chinese language would use on'yomi (in Japanese, the on'yomi for やま is san,  zan, sen, or zen), or pronunciations borrowed from Chinese, instead of kun'yomi, or native Japanese pronunciations. During the early days of Japanese writing, native Japanese words were largely written using man'yōgana instead of kanji. For example, while the kanji for "mountain" is 山, and the kun'yomi for the word is yama, the native Japanese word would be written as 耶麻, 八馬, 矢間, 也麻, etc. to distinguish it from being a Chinese loanword, or kango.