- suddenly have a brain wave; A bright idea occurs.; a flash of wit; A glimmer came into one's eyes.; A plan occurred to sombody.; get a sudden idea; have a sudden inspiration; hit on [strike upon] a bright idea; hit upon an idea; on a sudden inspiration; seized by a sudden impulse [inspiration]; with a sudden inspiration:
She had a brainwave and found a good solution.
她灵机一动,想出了个好办法。