치과dental surgery; dentistry; dentist’s office; dental clinic 치약toothpaste 충치tooth cavity; decayed tooth; carious tooth 치teeth 치아tooth 치열tooth arrangement; row of teeth 치통toothache 유치milk tooth 의치artificial tooth; denture 절치부심strong desire to take revenge

금강석diamond 보석jewel 비석tombstone; monument 석류pomegranate tree 석유oil; petroleum 일석이조killing two birds with one stone 초석cornerstone; foundation stone 타산지석learning from someone else's mistakes; lesson from someone else's failures 탄생석birthstone 투석stone-throwing; thrown stone