**Here are some examples of using the word «middle-aged» in English:**
1. My father is a very successful businessman in his middle-aged years.
2. She decided to start a new career as a writer when she reached her middle-aged years.
3. He is a middle-aged man with a family and two children.
4. The middle-aged couple walked hand in hand, enjoying a romantic stroll in the park.
5. She felt a bit lonely in her middle-aged life and decided to join a local book club.
6. He was a middle-aged man who had lost his job and was struggling to find a new one.
7. The middle-aged woman smiled at me as I entered the coffee shop.
8. He had a middle-aged crisis and started to feel like he was missing out on life.
9. She was a successful lawyer in her middle-aged career and was planning to retire soon.
10. The middle-aged man sat down on the bench and watched as children played in the playground.