The noun crash has 5 senses (first 4 from tagged texts)
1. (9) clang, clangor, clangour, clangoring, clank, clash, crash -- (a loud resonant repeating noise; "he could hear the clang of distant bells")
2. (4) crash, wreck -- (a serious accident (usually involving one or more vehicles); "they are still investigating the crash of the TWA plane")
3. (1) crash, collapse -- (a sudden large decline of business or the prices of stocks (especially one that causes additional failures))
4. (1) crash, smash -- (the act of colliding with something; "his crash through the window"; "the fullback's smash into the defensive line")
5. crash -- ((computer science) an event that causes a computer system to become inoperative; "the crash occurred during a thunderstorm and the system has been down ever since")
Overview of verb crash
The verb crash has 12 senses (first 5 from tagged texts)
1. (9) crash -- (fall or come down violently; "The branch crashed down on my car"; "The plane crashed in the sea")
2. (3) crash -- (move with, or as if with, a crashing noise; "The car crashed through the glass door")
3. (2) crash, ram -- (undergo damage or destruction on impact; "the plane crashed into the ocean"; "The car crashed into the lamp post")
4. (1) crash -- (move violently as through a barrier; "The terrorists crashed the gate")