Nantoka/동성dongseong동성 (dongseong) is a Korean word meaning “same surname”.Meanings1same surnamePart of speechnounHanja同姓Related words동시simultaneousness성surname성함name동창alumnus동창회school reunion동기same period동호회club동일sameness동료coworker동포compatriot동의synonymy공동collaborationStudy Korean with flashcards →