Exaggeration simply means going over the top. An example is when you are waiting for your friend, and you've been waiting 5 minutes, but you say to him: 'I've been waiting for like half an hour!' Hyperbole means UNREALISTIC exaggeration. That's the keyword.

Is all exaggeration hyperbole?

A hyperbole is an exaggeration, but it is not exactly the same as an exaggeration.

What is an example of hyperbole and exaggeration?

For example: “There's enough food in the cupboard to feed an entire army!” In this example, the speaker doesn't literally mean that there's enough food in the cupboard to feed the hundreds of people in the army. Instead, the speaker is using hyperbole to exaggerate the amount of food that they have.