at {one's} disposal

used to show that something is available for someone to use whenever necessary

As a high-ranking official, he has numerous resources at his disposal to solve the problem.
With a fleet of cars at her disposal, she can travel wherever she needs to go with ease.
The scientist had a state-of-the-art laboratory at his disposal for conducting experiments.
The company's executives have vast financial assets at their disposal to invest in new projects.
The general had a large army at his disposal, ready to be deployed at a moment's notice.

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