안전safety 전부everything 전부all 전체whole 보전preservation; conservation 불완전imperfection; incompleteness 안전거리safety distance 안전성safety 안전장치safety device 안전지대safety zone

속도speed 고속high speed 과속speeding 속도위반speeding violation 초고속superhigh speed; ultrafast speed 초속speed per second 쾌속high speed 쾌속선fast boat; high-speed boat 쾌속정fast boat; high-speed boat 풍속wind velocity

동력motive power 화력firepower; thermal 수력hydropower 인력manpower 자력one's own effort 노력effort; endeavor; hard work 능력ability; capability; competence 청력hearing 체력physical strength 판단력judgment; discernment