plane  
 noun [ C ] uk/pleɪn/ us/pleɪn/
  (AIRCRAFT)      
 A1 (UK also aeroplane); (US also airplane)飞机 
a vehicle designed for air travel, with wings and one or more engines
  a fighter/transport/passenger plane 战斗机/运输机/客机 
 We'll be boarding the plane in about 20 minutes. 大约20分钟后我们将登机。 
 He hates travelling by plane. 他不喜欢坐飞机旅行。 
 a plane ticket 飞机票 
 - More examples
 - We arrived at the airport just in time to catch the plane.
 - As the plane touched the ground, there was a massive jolt and we were thrown forwards.
 - She looked up as a plane roared overhead.
 - The plane climbed quickly to a height of 30 000 feet.
 - The plane circled for an hour before receiving permission to land.
 
  (SURFACE)      
  mathematics specialized平面 
in mathematics, a flat or level surface that continues in all directions
  an inclined plane 倾斜的平面 
   (LEVEL)      
  水平;层面;程度
a particular level or standard
  The poet's treatment of the subject lifts it to a mystical plane. 诗人对该题材的处理使它上升到了一个玄妙的高度。 
 His work is on a completely different plane from (= is much better than) other writers. 他的作品比其他作家的作品水平高得多。 
   (TOOL)     
  木工刨,刨子
a tool used to make wooden surfaces and edges flat and smooth by removing small strips of the wood
   (TREE)     
 (also plane tree)悬铃木 
a large tree with wide leaves and spreading branches that grows especially in towns
 plane       
 verb [ T ] uk/pleɪn/ us/pleɪn/
 刨平
to remove small strips of wood from a surface with a special tool
  You'll have to plane some more off the bottom of the door - it's still sticking. 你得再把门底刨一刨——门还有些卡。 
 plane       
adjective [ before noun ]  mathematics specialized uk/pleɪn/ us/pleɪn/
 平(面)的
flat
  a plane edge/surface 平滑边缘/表面 
 Synonym: level