1. (n.) The pin or spindle on which a wheel revolves, or which revolves with a wheel.

2. (n.) A transverse bar or shaft connecting the opposite wheels of a car or carriage; an axletree.

3. (n.) An axis; as, the sun's axle.

alcove axis axle axle bar axle shaft axle spindle axle-tree belvedere bower casino conservatory distaff fulcrum gazebo gimbal glasshouse greenhouse gudgeon hinge hingle hub kiosk lathhouse mandrel nave oarlock pergola pin pintle pivot pole radiant retreat rowlock spindle summerhouse swivel trunnion