- The definition of a brainstorm is a sudden idea or plan.
When you suddenly come up with an idea for a new electronic device, seemingly out of nowhere, this is an example of a brainstorm.
- To brainstorm is to think about and try to come up with ideas or solutions to a problem, either on your own or in a group.
If you and your co-workers sit around and try to come up with new ideas for an ad campaign, this is an example of when you brainstorm ideas.
- Archaic a series of sudden, violent cerebral disturbances
- Informal a sudden inspiration, idea, or plan
- A sudden clever plan or idea.
- A sudden, violent disturbance of the mind.
verbbrain·stormed, brain·storm·ing, brain·storms
- To consider or investigate (an issue, for example) by brainstorming.
- To think of or produce (a solution to a problem, for example) by brainstorming.
- (US) A sudden thought, particularly one that solves a long-standing problem.
- I had been working on the problem for weeks, and then I had a brainstorm and saw that the solution was easy.
- (UK) An unexpected mental error.