The antonyms for the term "end piece" are the beginning, start, initiation or origin. The term can apply to a variety of contexts, from a physical object such as a piece of furniture or building structure, to a written work or a performance. In each situation, the end piece represents the final part or conclusion of the whole. The opposite of an end piece, the beginning or start, often marks the commencement of a new journey or an introduction to something new. In literature or a performance, the initiation or origin helps set the tone for what follows, providing the foundation for the end piece to build upon.