BRAINSTORM

insight, brainstorm, brainwave

(noun) the clear (and often sudden) understanding of a complex situation

brainstorm

(verb) try to solve a problem by thinking intensely about it

Source: WordNet® 3.1

Etymology

Verb

brainstorm (third-person singular simple present brainstorms, present participle brainstorming, simple past and past participle brainstormed)

To investigate something, or solve a problem using brainstorming.

To participate in a brainstorming session.

Noun

brainstorm (plural brainstorms)

(US) A sudden thought, particularly one that solves a long-standing problem.

Synonym: brainwave

A session of brainstorming, investigating a problem to try to find solutions.

(British) An unexpected mental error.

Source: Wiktionary