He could make out individual words, but the context made no sense.
However, the two terms are often used interchangeably, particularly if the context makes clear the distinction.
The average power is often simply called "power" when the context makes it clear.
The context in the book makes all the difference.
I couldn't see that the context made much difference.
As the context made clear, she favors the right of women to choose an abortion.
The context makes it certain that political power was implied.
But the context made it very clear what he meant.
The context usually makes it clear which one is being used.
Sometimes, though not always, the context makes it clear which meaning is intended.