訓 ただ ・ 音 ユイ,イ 🔊
Sino-Vietnamese: duy
Mouth 口 plus 隹 for sound: a single "yes" in reply; Hán Việt duy as in duy nhất (the only one).
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
彼は私の唯一の友達だ。 (かれはわたしのゆいいつのともだちだ)
He is my only friend.