Nantoka/고지서gojiseoAdvanced고지서 (gojiseo) is a Korean word meaning “official billing”.Meanings1official billingPart of speechnounHanja告知書Related words광고advertisement독서reading도서관library교과서textbook서점bookstore서류document엽서postcard보고report보고서report충고advice고백confession경고warningStudy Korean with flashcards →