**Here are some examples of using the word «tough» in English:**
1. It was a tough decision to make, but I knew it was the right one.
2. She has been through a tough time lately, but she is determined to keep going.
3. The exam was really tough, and I barely passed.
4. He is a tough guy who doesn't show his emotions easily.
5. The weather was tough, with strong winds and heavy rain.
6. We had a tough negotiation with the supplier, but we managed to get a better deal.
7. She is a tough teacher who expects a lot from her students.
8. It was a tough climb up the mountain, but the view from the top was amazing.
9. He has a tough schedule today, with meetings all day long.
10. The team faced a tough opponent in the final, but they managed to win.