1. "bookcase" refers to a piece of furniture designed to store books, often consisting of shelves attached to a frame.2. A bookcase can be a freestanding unit with multiple shelves for organizing and displaying books, or it can be built-in to a room's architecture.3. Examples of bookcase usage: - A glass-fronted bookcase allows for the visibility of books while protecting them from dust. - A rarely fine Sheraton bookcase signifies a high-quality bookshelf with a specific style and craftsmanship. - "The bookcase is too heavy for two people to carry" implies the item's substantial weight. - "He had a copy of collected works of Shencongwen in his bookcase" indicates the presence of a specific author's collected works on the shelves. - "Persky tucked the bills in his pants pocket and turned toward his bookcase" suggests a person's action in relation to the furniture. - "JOHN: Take the magazines out of the bookcase. Put them in that box. PETER: Remove the magazines from the bookcase and place them in the designated box."