| intellect(noun, person, understanding, power, spirit) |
| mind(noun, person, understanding, ability, reason) |
| head(noun, body, power, spirit, ability) |
| genius(noun, person, understanding, power, spirit) |
| egghead(noun, person, informal, expert, intellectual) |
| intellectual(noun, person, understanding, power, spirit) |
| mentality(noun, understanding, power, spirit, ability) |
| wit(noun, understanding, ability, mind, sense) |
| intelligence(noun, understanding, ability, mind, reason) |
| mastermind(noun, person, intellectual, wonder, sage) |
| scholar(noun, person, informal, expert, intellectual) |
| brainpower(noun, understanding, power, spirit, ability) |
| sense(noun, understanding, ability, mind, reason) |
| understanding(noun, ability, mind, reason, sense) |
| thinker(noun, person, understanding, power, spirit) |
| brains(noun, understanding, power, spirit, mind) |
| highbrow(noun, person, informal, intellectual, sage) |
| reason(noun, understanding, power, spirit, mind) |
| capacity(noun, power, spirit, ability, mind) |
| prodigy(noun, person, thing, informal, intelligence) |