| focus(noun, center, middle, target) |
| core(noun, center, middle, target) |
| middle(noun, average, center, focus, centre) |
| center(noun, point, average, root, focus) |
| nucleus(noun, center, middle, target) |
| symmetry(noun, balance, proportion, regularity, symmetry) |
| axis(noun, center, middle, target) |
| centriole(noun, center, middle, target) |
| centrum(noun, center, middle, target) |
| cynosure(noun, center, middle, target) |
| equidistance(noun, center, middle, target) |
| essence(noun, center, middle, target) |
| focal point(noun, center, middle, target) |
| gist(noun, center, middle, target) |
| heart(noun, center, middle, target) |
| hotbed(noun, center, middle, target) |
| hub(noun, center, middle, target) |
| inside(noun, center, middle, target) |
| interior(noun, center, middle, target) |
| intermediacy(noun, center, middle, target) |