What is the difference between corruption and tyranny?

I’m doing a paper for school, and I want to pick a topic having to do with political corruption. I’ve been researching, and honestly, I don’t really understand what each term means. Is there a difference? Would a corrupt country such as Somalia be experiencing both corruption AND tyranny?

Tyranny usually comes from corruption. The government get corrupt and then becomes a tyrannical power. Corruption is a state of being corrupt while Tyranny is a way you govern.