"Out box" is a term used to describe the process of completing tasks and finishing work. Some synonyms for out box include "completed," "finished," "done," "finalized," and "accomplished." Other synonyms for out box may depend on the specific field of work or the type of project being completed. For example, in the world of design and creativity, synonyms for out box may include "innovative," "original," or "one-of-a-kind." In a project management setting, synonyms for out box may include "delivered," "executed," or "implemented." Overall, the synonym for out box reflects the successful completion of tasks and successful attainment of goals.