VEHICLE [I, T] › If a vehicle crashes, it hits something by accident, and if you crash a vehicle, you make it hit something by accident: The van skidded and crashed into a tree. Rick crashed his dad's car. COMPUTER [I] › If a computer or computer system crashes, it suddenly stops working.
crash against/on/through, etc › to hit something and make a loud noise: The waves crashed against the rocks.
LOUD NOISE [I] › to make a sudden, loud noise: Thunder crashed overhead. MONEY [I] › If a financial market crashes, prices suddenly fall by a large amount.