신호code; sign 신호등traffic light; traffic signal 통신communication; correspondence 확신belief; conviction; confidence 미신superstition 발신mailing; sending; transmission 발신인addresser; sender 수신인addressee 신념belief; faith; conviction 신뢰trust; faith

무조건being unconditional 무조건unconditionally 조article; clause 조건condition 충분조건sufficient condition 필요조건necessary condition 필요충분조건necessary and sufficient condition 호조건good condition; favorable terms 개조article; clause 교조dogma; tenet