secondary audio channel in a multiple audio channel television broadcast (音声多重放送), used for commentary, audio in another language, etc.

sound / timbre / Short for 音楽 (ongaku): music / speech (phonetics) / Short for 字音 (jion): Chinese-derived reading of a kanji / news, tidings

sound / Short for 音読み (on'yomi): the Chinese-derived reading of a kanji / (by extension) reading of a Chinese character outside the Japanese language; rime / Short for 音楽 (ongaku): music

a sound, voice / the cry of an animal

sound / news; tidings; word

education, study, learn / school / science

-ology; -ics; study of...

a male given name

archaeology

Kyūjitai form of 言語学 (“linguistics”)