Nantoka/철야cheollya[처랴]철야 (cheollya) is a Korean word meaning “staying up all night”.Meanings1staying up all nightPart of speechnounHanja徹夜Related words철저히perfectly야간night야근working overtime야경night view철저being perfect심야dead of the night야광glow in the dark열대야tropical night철두철미perfectly철두철미하다perfect철저하다perfect철야하다stay up all nightStudy Korean with flashcards →