| spike(noun, top, point, head, spur) |
| point(noun, end, top, head, extreme) |
| tine(noun, top, point, head, spur) |
| barb(noun, top, point, head, spur) |
| spur(noun, top, point, head, needle) |
| spine(noun, top, point, head, spur) |
| fork(noun, stem, spike, limb, bisection) |
| branch(noun, point, tail, arm, stem) |
| hook(noun, point, needle, tail, spike) |
| cusp(noun, block, top, limit, head) |
| prick(noun, verb, cut, top, head) |
| quill(noun, needle) |
| apex(noun, top, point, head, spur) |
| claw(noun, top, point, head, spur) |
| needle(noun, needle) |
| pin(noun, needle) |
| prickle |
| stab(verb, object, wound, knife, pierce) |
| tooth(noun, part, top, head, spur) |
| wedge(noun, block, segment, triangular) |