This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A sudden clever plan or idea.

n. A sudden, violent disturbance of the mind.

verb-intransitive. To engage in or organize brainstorming.

v. To consider or investigate (an issue, for example) by brainstorming.

v. To think of or produce (a solution to a problem, for example) by brainstorming.

n. A sudden thought, particularly one that solves a long-standing problem.

n. brainstorming

n. An unexpected mental error.

v. To investigate something, or solve a problem using brainstorming.

v. To participate in a brainstorming session.

n. the clear (and often sudden) understanding of a complex situation; a sudden brilliant insight.

v. to try to solve a problem by discussing it exhaustively in an intense group meeting encouraging uninhibited and spontaneous contributions from all members.

v. try to solve a problem by thinking intensely about it

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

"The brainstorm is this: one could very easily use Meetup to arrange a local “Old School CD Share.”"

brainstormed    brainstorming    brainstorms   

think    cogitate    cerebrate   

insight    brainwave    practice brainstorming   

rainstorm   

brainstorming    lightshow    shamanism    fecundation    itanium-based    jihadist    depersonalization    '60s    mudhole    folktale