Kan'on, a Sino-Japanese kanji pronunciation layer; based mainly on the Chinese pronunciation in use in the areas around Chang'an (around modern-day Xi'an) and Henan, as imported into Japanese in the Nara period and the early Heian period in Japanese history, and roughly from the late Tang Dynasty through the early Song Dynasty in Chinese history. The predominant layer used in Japanese today, as opposed to the other layers which are associated with restricted sets of words (Buddhism, etc.).

(linguistics) the reading of a Japanese word written in kanji that is roughly based on the pronunciation of the kanji characters in the originating Chinese dialect at the time the word was introduced into Japanese

to use the on'yomi of a word, to read a word using the pronunciation based on the original Chinese pronunciation

one thing

the Japanese language

first, initial / one-eyed

Japanese-language education for non-native speakers

The hiragana syllable げ (ge) or the katakana syllable ゲ (ge) in Japanese braille.

one-eyed goblin, a Japanese monster

I don't speak Japanese