The phrase "in folded" refers to something that has been folded in half or multiple times. It can be replaced with synonyms such as "folded," "crease," "bend," or "twist." Other synonyms include "doubled over," "tucked," "curled," and "rolled up." These words can be used in a variety of contexts, such as in describing a paper airplane that has been intricately folded or a shirt that has been neatly creased. They can also be useful when describing the physical appearance of objects or the movements of certain body parts, such as fingers that have been tightly twisted together.