Floor-to-ceiling is an architectural term used to describe the height of a room. It is often used to refer to a space that has been designed with walls that reach from the floor all the way up to the ceiling. Other words that can be used as synonyms for the term "floor-to-ceiling" include full-height, wall-to-wall, and ground-to-roof. These terms are all designed to convey the same meaning - a space that has been maximized in terms of height. Additionally, these words also connote an air of spaciousness, elegance, and grandeur to a particular room or building.