ranger

/ˈreɪndʒər/
noun
  1. A person who protects and manages a forest, park, or natural area; a park ranger.
    • The ranger led a guided hike through the national park.
    • We asked the ranger for a map of the hiking trails.
    • A forest ranger monitors wildlife and prevents illegal logging.
  2. A member of a military unit trained for special operations, especially in the U.S. Army Rangers.
    • He trained for months to become an Army Ranger.
    • Many rangers are experts in survival and combat tactics.
    • The rangers completed a dangerous mission behind enemy lines.
  3. A person who patrols a specific area to enforce laws or provide security, such as a game ranger or a police ranger.
    • A park ranger issued a ticket for camping without a permit.
    • The ranger checked our fishing licenses at the lake.
    • The game ranger tracked poachers in the wildlife reserve.