The answer to 'what is bathtub' is a large container used for bathing, typically made of porcelain or acrylic and installed in a bathroom. Bathtubs are designed to hold water and allow a person to soak their body for cleaning, relaxation, or therapeutic purposes. They come in a variety of shapes, sizes, and styles to fit different bathroom layouts and personal preferences.
Bathtubs are an essential plumbing fixture in most homes, providing a dedicated space for bathing that is separate from the shower. They can be freestanding, built-in, or recessed, and may include features like jets, heaters, and overflow drains to enhance the bathing experience.