천고마비autumn 천국heaven 천사angel 천장ceiling 천재genius 천재적genius 천재적talented; gifted 천주교Catholicism 청천벽력bolt from the blue 총천연색all natural color

화재fire 화재경보기fire alarm 방재disaster prevention 산재industrial hazards 삼재three disasters; three years of misfortune; three ill-fated years 수재flood damage 수재민flood victim 이재민victim of disaster 인재human disaster; man-made disaster 자연재해natural disaster

관광지tourist attraction 여행지travel destination 지도map 지방area; district 지하basement 지하도underground tunnel 지하철subway 지하철역subway station 출발지point of departure 피서지summer resort; vacation destination

변경change; alteration 변동change; fluctuation 변화change 가변variability 가변성variability; changeability 가변적being variable 가변적changeable; changing; variable 개변change; reformation; renovation 격변sudden change; rapid change; violent upheaval; cataclysm 격변기period of upheaval