1.a sudden short attack
2.an attempt by speculators to defraud investors
1.search without warning, make a sudden surprise attack on;
The police raided the crack house
2.enter someone else's territory and take spoils;
The pirates raided the coastal villages regularly
3.take over (a company) by buying a controlling interest of its stock;
T. Boone Pickens raided many large companies
4.search for something needed or desired;
Our babysitter raided our refrigerator