hinge, pivot, door, center of things

Radicals

Common words

• 中枢【ちゅうすう】
  centre, center, pivot, mainstay, nucleus, hub, backbone, central figure, pillar, key person, central nervous system
• 枢軸【すうじく】
  axle, pivot, center (of power, activity), central point, the Axis (WWII alliance)