| centrum(noun, center, middle, target) |
| marrow(noun, place, emotion, quick, heart) |
| midst(noun, core, center, middle, target) |
| axle(noun, focus, rotation) |
| nerve center(noun, expression, idiom, point, base) |
| pith(noun, place, emotion, quick, heart) |
| cynosure(noun, center, middle, target) |
| arbor |
| boss(noun, convexity) |
| crux(noun, support, point, emotion, heart) |
| hotbed(noun, center, middle, target) |
| hubby |
| inside(noun, center, middle, target) |
| quick(noun, place, start, point, emotion) |
| root(noun, support, place, start, point) |
| nub(noun, emotion, heart, soul, mood) |
| capital(noun, base, center, focus, station) |
| centrality(noun, center, middle, target) |
| centriole(noun, center, middle, target) |
| equidistance(noun, center, middle, target) |