#carpenter's_level__carpenter'slevel  a straight bar of light metal with a spirit level in it
  supertype:  #bar.artifact  a rigid piece of metal or wood; usually used as a fastening or obstruction of weapon; "there were bars in the windows to prevent escape"
  subtype:  #plumb_level  a carpenter's level with a plumb line at right angles to it
  part:  #spirit_level__level  indicator that establishes the horizontal when a bubble is centered in a tube of liquid

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