Threaten

What is Threaten ?

Threaten is (verb) 1. to warn that you are going to do something unpleasant, especially if someone doesn’t do what you want She threatened to go to the police. The teacher threatened her with punishment. 2. to be likely to have a bad effect on something The collapse of the stock market threatened the stability of the currency.

 

source: Easier English, Student Dictionary Upper Intermediate Level