**Here are 10 examples of using the word «optional»:**
1. It is **optional** to wear a uniform at our school, but I recommend it for a more professional and unified look.
2. The tour package includes a guided sightseeing, but a cooking class is **optional**.
3. You can add some extra toppings to your pizza, but they are **optional**. I suggest trying them all to find your favorite combination.
4. The conference offers several workshops, but attending them is **optional**. You can choose the ones that are most relevant to your interests.
5. Our team has a weekly meeting, but it is **optional** if you prefer to work independently.
6. The final exam is **optional**, but passing it will give you an extra chance to improve your grade.
7. We provide lunch for our employees, but bringing your own food is **optional**. Just let us know if you want to take advantage of our catering service.
8. The company offers a variety of health insurance plans, but choosing one is **optional**. We encourage you to explore all options and select the best coverage for you.
9. We have a team building event planned, but attending it is **optional**. If you prefer to spend your time differently, just let us know.
10. The membership fee includes access to our gym, but using other facilities is **optional**. Feel free to explore our campus and find the place that suits you best.