**Here are 10 examples of using the word «sentinel» in English:**
1. The ancient Egyptians believed that the statue of a pharaoh acted as a sentinel, protecting the tomb from evil spirits.
2. The sentinels on duty at the gate of the fortress carefully watched for any suspicious movements.
3. The sentinel system on the perimeter of the military base detects any unauthorized intrusion.
4. The sentinels of the park keep an eye on the order and safety of visitors.
5. The statue of Liberty is a symbol of freedom and a sentinel of New York.
6. The sentinels guarding the royal palace were well-trained and vigilant.
7. The sentinels of nature protect the fragile ecosystem of the rainforest.
8. The sentinels of peace are peacekeepers who maintain stability and security in troubled areas.
9. The sentinels of history preserve the memory of past events and cultural heritage.
10. The sentinels of justice ensure that laws are upheld and justice is served.