**Here are some examples of using the word «substitute»:**
1. I had to find a **substitute teacher** to cover my classes while I was on vacation.
2. She offered to **substitute** for her colleague who was on sick leave.
3. The company is looking for a **substitute** part for our production line.
4. He decided to **substitute** rice with quinoa in his recipe to make it more nutritious.
5. The coach asked for a **substitute player** to replace the injured star of the team.
6. She had to **substitute** a new battery in her car because the old one was dead.
7. The restaurant had to **substitute** some ingredients in the dish due to supply problems.
8. He offered to **substitute** his services for free for a week to help out with the project.
9. The manager asked for a **substitute manager** to cover his shift while he was on a business trip.
10. She decided to **substitute** her morning workout with a yoga class.
In each of these examples, the word «substitute» is used to describe replacing something with another item, person, or action.