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English definition of “brainstorm”

brainstorm

verb [I/T]  /ˈbreɪnˌstɔrm/ us  
to suggest a lot of ideas for a future activity very quickly before considering some of them more carefully: [I] They brainstormed and mapped plans for dealing with problems like affordable housing and the budget shortfall.
brainstorming
noun [U]  /ˈbreɪnˌstɔr·mɪŋ/ us  
We need to do some brainstorming before we get down to detailed planning.

brainstorm

noun [C]  /ˈbreɪnˌstɔrm/ infml us  
a sudden, new idea that you are enthusiastic about: They got this brainstorm that they could make a living by buying and selling antiques.
(Definition of brainstorm from the Cambridge Academic Content Dictionary © Cambridge University Press)
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