1. intellectual ability or mental capacity
2. the intellectual resources of a group or organization

Examples

• The company recruited top scientists to increase their brainpower.
• She used all her brainpower to solve the complex math problem.
• The research team combined their brainpower to find a solution.
• This puzzle requires serious brainpower to complete.
• The startup attracted impressive brainpower from leading universities.
• He relied on his natural brainpower rather than studying hard.
• The project needs more brainpower to meet the deadline.