| pinnacle(noun, cover, top, point, heaven) |
| column(noun, keep, beam, height, stronghold) |
| pillar(noun, keep, beam, height, stronghold) |
| spear(noun, tip, beam, weapon, spike) |
| obelisk(noun, keep, beam, peak, height) |
| axis(noun, shoot, beam, stem, tunnel) |
| lance(noun, beam, spike, tunnel) |
| pole(beam, tunnel) |
| barb(noun, top, head, spur, tip) |
| monolith(noun, keep, beam, stronghold, pillar) |
| arrow(beam, tunnel) |
| axle(noun, beam, tunnel, duct) |
| bar(beam, tunnel) |
| beam |
| chimney(noun, beam, tunnel, duct) |
| conduit(noun, beam, tunnel, duct) |
| cylinder(beam, tunnel) |
| diaphysis(noun, beam, tunnel, duct) |
| duct(noun, beam, tunnel, chimney) |
| flue(noun, beam, tunnel, duct) |