2. the clear (and often sudden) understanding of a complex situation.
Syn: insight, brainstorm. [WordNet 1.5]
For their latest brainwave they have asked me to establish a chain of 15,000 betting shops across the Soviet Union. 'I said: 'And what will you bet on?
The prime minister's brainwave of turning the honours system into a DIY venture seems to be a roaring success with the punters. Only four days after the announcement and over 1,000 requests for application forms have been received.