| intelligence quotient(noun, expression, understanding, philosophy, character) |
| mentality(noun, state, attitude, approach, intelligence) |
| sense(noun, understanding, philosophy, character, position) |
| caliber |
| calibre |
| capacity |
| comprehension(noun, understanding, philosophy, character, position) |
| intellect(noun, understanding, philosophy, character, position) |
| rationality(noun, understanding, philosophy, character, position) |
| understanding(noun, philosophy, character, position, mind) |
| wit(noun, understanding, philosophy, character, position) |
| IQ(noun, understanding, philosophy, character, position) |
| apprehension |
| attitude(noun, understanding, philosophy, character, position) |
| brainpower(noun, understanding, philosophy, character, position) |
| brains(noun, understanding, philosophy, character, position) |
| calibrate |
| cast(noun, understanding, philosophy, character, position) |
| conception |
| headset(noun, understanding, philosophy, character, position) |