| axle(noun, support, point, beam, shaft) |
| axis(noun, support, beam, shaft, stem) |
| beam(noun, shaft, tunnel) |
| pole(noun, support, beam, shaft, stem) |
| shaft(noun, support, point, center, stem) |
| handle(noun, handle, beam, tunnel) |
| cylinder(noun, beam, tunnel) |
| arrow(noun, beam, tunnel) |
| lance(noun, beam, shaft, tunnel) |
| bar(beam, tunnel) |
| barb(noun, beam, tunnel, duct) |
| chimney(noun, beam, tunnel, duct) |
| column(noun, beam, tunnel, duct) |
| conduit(noun, beam, tunnel, duct) |
| diaphysis(noun, beam, tunnel, duct) |
| duct(noun, beam, tunnel, chimney) |
| flue(noun, beam, tunnel, duct) |
| helve(noun, beam, tunnel, duct) |
| hole(noun, beam, tunnel, duct) |
| missile(beam, tunnel) |