| heart(noun, good, part, quality, understanding) |
| core(noun, adjective, good, quality, understanding) |
| kernel(noun, quality, body, character, strength) |
| pith(noun, quality, body, cause, start) |
| essence(noun, cause, start, spirit, substance) |
| nucleus(noun, quality, body, cause, start) |
| meat(noun, good, quality, understanding, body) |
| substance(noun, good, quality, understanding, body) |
| gist(noun, good, understanding, body, strength) |
| point(noun, quality, understanding, character, strength) |
| marrow(noun, quality, cause, start, character) |
| crux(noun, part, quality, body, cause) |
| knob(noun, handle, head, bump, lump) |
| nitty-gritty(noun, adjective, good, end, quality) |
| quintessence(noun, quality, cause, start, character) |
| center(noun, body, cause, start, strength) |
| focus(noun, body, strength, substance, effect) |
| protuberance(noun, handle, head, bump, lump) |
| bump(noun, handle, lump, dial, convex) |
| bulge(noun, handle, bump, lump, knot) |