A zoo is a place where people can observe and learn about a wide variety of animals. There are several synonyms for the word "zoo" such as animal park, safari park, menagerie, wildlife sanctuary, and aquarium. An animal park is a large area where various types of wild animals are kept in enclosures for observation and study. A safari park is similar to an animal park but usually has larger enclosures and allows visitors to drive through the park. A menagerie is a collection of animals, kept for exhibition or study, in a confined space. A wildlife sanctuary is a protected area that provides habitat and protection for various species. An aquarium is a place where visitors can study and learn about aquatic life.