Nantoka/凹坑āo kēng凹坑 (āo kēng) is a Chinese word meaning “concave depression; crater”.Meanings1concave depression2craterCharacters in 凹坑凹āo · concave; depressed; sunken; indented; female (connector etc)坑kēng · pit; hollow; depressionRelated words坑pit; hollow; depression坑variant of 坑[keng1]凹concave; depressed; sunken; indented; female (connector etc)凹variant of 窪|洼[wa1]火坑pit of fire水坑puddle粪坑latrine pit沙坑sandbox凹陷to cave in; hollow; sunken; depressed矿坑mine凹槽recess茅坑latrine pitStudy Chinese with flashcards →