A decider is a person who makes decisions or takes action, especially in difficult situations. It can also refer to someone who has the power and authority to make important choices on behalf of others.
Usage examples
The decider is responsible for making important decisions in the company.
The management team appointed John as the decider for the marketing strategies.
As a decider, she must carefully analyze the options before choosing the best course of action.
The board members vote to select a decider who will have the final say on the budget allocation.
Alice has proven to be an excellent decider in her previous role, which is why she was promoted to a higher position.