What's the difference between i.e. and e.g.?
A sudden idea, esp one that is apt and useful; a happy insight •Brainstorm was a medical term for ''mental explosion'' by the 1890s (1920s+)verb
To examine and work on a problem by having a group sit around and utter spontaneously whatever relevant thoughts they have: We'll brainstorm the drop in enrollment (1920s+)