The katakana syllable ヰョ (wyo). Its equivalent in hiragana is ゐょ (wyo).

rare, unusual

the Japanese language

sound; echo; voice

a sound / when used with a "hear" verb, a rumor or fame / news, tidings / a reply, response

Japanese-language education for non-native speakers

sound / news; tidings; word

a sound, voice / the cry of an animal

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