The phrase "in piece" can refer to something that is intact or undamaged. Synonyms for this phrase include "whole," "unbroken," "undivided," and "complete." These words all convey the idea of something being unmarred or unblemished. Alternatively, "in piece" can also suggest a sense of tranquility or calmness. Synonyms for this interpretation could include "serene," "quiet," "peaceful," or "placid." These words indicate a state of being undisturbed or free from turmoil. Whether the original meaning is referring to something physical or emotional, there are many language choices one can use to better convey their intended message.