The powers of the boards varied according to the acts which created them.

A foreign minister's powers can vary from government to government.

I find that the power varies with my own strength and health.

Though power for particular actions varies from one federation to another.

Today the critic's power varies according to the price of the ticket.

The power and influence of this office varied strongly over time.

The tasks and powers of a secret service can vary greatly from one country to another.

The power of a Commissioner largely depends upon their portfolio, and can vary over time.

The powers and prestige of the prime minister have varied through the years.

The king had absolute authority, but his actual power varied with political circumstances.