A "library" can refer to different things depending on the context. Here are a few common interpretations:

1. Public Library: A public library is a community resource that houses a collection of books, periodicals, digital media, and other materials that are available for borrowing by the general public. Public libraries often offer various services, including internet access, research assistance, and educational programs.

2. Academic Library: An academic library is typically associated with a university, college, or academic institution. It provides students, faculty, and researchers with access to scholarly resources, including books, journals, databases, and specialized research materials.

3. Digital Library: A digital library is an online repository of digital content, such as e-books, articles, multimedia, and historical records. Digital libraries are accessible via the internet and serve as valuable resources for research and information retrieval.

4. Private Library: A private library is a collection of books and materials owned by an individual or a private organization. It may consist of personal books or specialized collections focused on specific interests or subjects.

5. Library Building: In a physical sense, a library can also refer to the building or structure that houses a collection of books and other materials. Library buildings often provide reading spaces, study areas, and computer terminals for patrons.

6. Library Software: In the context of computer science and information management, a library can refer to a collection of pre-written code or software functions that can be reused in software development. These libraries help developers save time and effort by providing ready-made solutions for common programming tasks.

7. Media Library: A media library is a digital or physical collection of various types of media, such as music, films, photos, or video games. Media libraries are used for organizing, cataloging, and accessing these media files.

8. Specialized Library: Some organizations and institutions maintain specialized libraries that focus on particular subjects, industries, or topics. For example, a law firm might have a legal library with resources specific to the field of law.

9. Library Science: Library science is the academic discipline that studies the organization, management, and preservation of libraries and information resources. Library scientists work to improve the efficiency and effectiveness of library services.

10. Library Card: A library card is a physical or digital card issued by a library that allows patrons to borrow materials and access library services. It typically contains a unique identification number.

Libraries serve as essential resources for education, research, entertainment, and community engagement. They provide access to information and knowledge, promote literacy, and support lifelong learning. Libraries have evolved over time, adapting to changing technology and information needs, but they remain vital institutions in society.