| nexus(noun, connection, link, tie, bond) |
| pith(noun, center, middle, target, centrality) |
| pivot(noun, center, middle, target) |
| stomach-button(noun, belly button, omphalos, umbilicus, omphalus) |
| stomach button(noun, belly button, omphalos, umbilicus, omphalus) |
| centrum(noun, center, middle, target) |
| hotbed(noun, center, middle, target, centrality) |
| centrality(noun, center, middle, target) |
| centriole(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) |
| innie(noun, belly button, omphalos, umbilicus, omphalus) |
| inside(noun, center, middle, target) |
| interior(noun, center, middle, target) |
| intermediacy(noun, center, middle, target) |
| mainstream(noun, center, middle, target) |
| middle of the road(noun, center, middle, target) |