Nantoka/수면sumyeonIntermediate수면 (sumyeon) is a Korean word meaning “sleep”.Meanings1sleepPart of speechnounHanja睡眠Related words수면제sleeping pill불면증insomnia숙면deep sleep혼수deep sleep혼수상태coma오수afternoon nap수련water lily안면sound sleep불면sleeplessness최면hypnosis최면술mesmerism동면hibernationStudy Korean with flashcards →