| median(noun, middle) |
| midpoint(noun, center, middle, target) |
| seat(noun, place, cause, start, base) |
| egg(noun, cause, influence, base, connection) |
| nitty-gritty(noun, quality, character, spirit, short) |
| premise(noun, support, action, base, beginning) |
| quintessence(noun, quality, cause, start, character) |
| spirit(noun, quality, character, substance, idea) |
| centrality(noun, center, middle, target, centrality) |
| centrum(noun, center, middle, target) |
| polestar(noun, place, emotion, quick, heart) |
| quick(noun, place, body, cause, start) |
| basis(noun, action, quality, body, cause) |
| nucleolus(middle, centrality) |
| quiddity(noun, quality, character, spirit, significance) |
| soul(noun, force, quality, cause, start) |
| base(noun, support, action, quality, body) |
| centriole(noun, center, middle, target) |
| core group(noun, expression, idiom) |
| cynosure(noun, center, middle, target) |