투자investment 투표vote; ballot; poll 투고unsolicited submission; unsolicited contribution 투고란reader’s column page 투구throwing a ball; pitching; thrown ball 투기speculation 투기성being speculative 투망casting a net 투매sacrifice sale; dumping 투사shooting; throwing

출입going in and out; entry 출입국departure; entry 입구entrance 출입coming and going 입국entering a country 입수to obtain 입구entrance; entry; gate 입원hospitalization 입장권admission ticket; entrance ticket 입학admission to a school; entrance into a school