brainiac /brāˈni-ak/ (N Am inf)

An exceptionally intelligent person

• spellings
• spell it out
• spell out
• spells
• spellstopt
• spelt
• spelter
• spelters
• spelts
• spelunker
• spelunkers
• spelunking
• spelunkings
• spence
• spencer
• Spencerian
• Spencerianism
• spencers
• spences
• spend
• spendable
• spendall
• spendalls
• spend a penny
• spender