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to jump the gun
01
to do something too earlier than its right time
![to [jump] the gun definition and meaning](https://cdn.langeek.co/photo/44196/original/?type=jpeg "to [jump] the gun definition and meaning")
What is the origin of the idiom "jump the gun" and when to use it?
The idiom "jump the gun" has its origin in the sport of horse racing rather than track and field. In horse racing, a starting gun is used to signal the beginning of the race. The phrase "jump the gun" originally referred to a horse that began running before the starting signal was given, resulting in a false start. It is now commonly used when someone initiates an action or makes a judgment before the appropriate time, without having all the necessary information or considering the full consequences.
例子
They were jumping the gun by assuming the project was a success before it was completed.
Tomorrow, they will likely jump the gun and announce the results before the official announcement.
Don't jump the gun and make a decision before considering all the options.
She jumped the gun and started celebrating before realizing she hadn't actually won the competition.
Why are you jumping the gun?
