1) Brain 2) Cleverness 3) Intelligence 4) Sense 5) Sled 6) Smarts 7) Wit 8) Wits 1) Brain 2) Intellectual capacity 3) Intelligence 4) Learning ability 5) Mental ability 6) Mental capacity 7) Mentality 
intellectual capacity; mental ability. · people with superior mental abilities: an emergency medical conference of all available brainpower.