plane [i pl3in ]     (순위: 954 - 중2 수준)   뜻  평면; 비행기 Mean  A surface containing all the straight lines that connect any two points on it. 파생어 planeness  [명] 평탄(flatness) 예문 1. a high moral plane (높은 도덕 수준) 2. a plane surface (평면) 3. an inclined plane (사면, 빗면) 4. a plane lense (평면 렌즈) 5. an elevating plane (승강익)