think tank

Short definition from Wiktionary

Noun

1. 1
   A group of people who collectively perform research and develop reports and recommendations on topics relating to strategic planning or public policy, and which is usually funded by corporate, government, or special interests.
2. 2
   The brain.
3. 3
   Alternative spelling of think tank.

Verb

1. 1
   To perform research and develop recommendations as part of a think tank.