(idiomatic) 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.

(idiomatic) Thinking that is not grounded or in touch with the realities of the present; open-minded thinking.

Thought; gerund of think.

present participle of think

One who spends time thinking, contemplating or meditating. / An intellectual, such as a philosopher or theologian. / (slang) The brain, mind. / (slang) A poser; a conundrum that requires some thinking.

(idiomatic, psychology) The illusion that what one would like to be true is actually true. / (idiomatic) Decision-making based on self-delusion.

(idiomatic) by the way; now that I think about it; indicates something brought to mind.

(idiomatic) To reconsider, use judgement; to proceed with caution or thought.

(transitive) To change one's mind concerning, especially to decide against.

(chiefly historical) A public assembly or judicial council in a Germanic country. / (informal) Nickname or appellative for numerous "things", including fictional characters.