凹おう #67,777 Link copied! Pitch accent お う [1] Atamadaka Meaning Prefix concave; hollow; sunken See also: 凹レンズ (おうレンズ) Kanji 凹 オウ concave, hollow, sunken Forms 凹#67,777凹おうおうおう Learn this word with smart reviews that adapt to you Save word