noun
staff member of a public facility
Refers to employees or personnel working at a public building such as a library, museum, community center, or similar institution.
図書館の館員に尋ねたら、すぐに本が見つかった。
When I asked a library staff member, I found the book right away.
博物館の館員が展示について詳しく説明してくれた。
A museum staff member gave me a detailed explanation of the exhibit.