| center(heart, nucleus) |
| central(adjective, important, significant, vital) |
| clear-headedness(noun, intelligence, wisdom, intellect, brains) |
| cleverness(noun, intelligence, wisdom, intellect, brains) |
| coal-and-ice(adjective, critical, decisive) |
| cognizance(noun, intelligence, wisdom, intellect, brains) |
| cold(adjective, basic, absolute, fundamental, key) |
| comfort food(noun, food) |
| common sense(noun, expression, intelligence, wisdom, intellect) |
| complete(adjective, basic, absolute, fundamental, key) |
| congenital(adjective, basic, absolute, fundamental, key) |
| connate(adjective, basic, absolute, fundamental, key) |
| consciousness(noun, intelligence, wisdom, intellect, brains) |
| consequence(heart, center, nucleus) |
| constitutive(adjective, important, significant, vital) |
| corpus(heart, center, nucleus) |
| critical(adjective, decisive) |
| crucial(adjective, important, significant, vital) |
| crucial point(expression, essence, crux) |
| crux of the matter(expression, idiom, details, essentials, fundamentals) |