Fiddlestring, a lesser-known word, refers to the string of a fiddle or violin. However, in informal conversations, it is often used to denote anything that is thin, frail or with little strength. Some synonyms for this word include thread, twine, strand, filament, cord, and rope. All of these words have a common attribute, which is their thinness and incapacity to bear much weight. Some people might use the word string or wire in place of fiddlestring. Regardless of the term used, it is essential to understand the synonyms and their meanings to communicate effectively and avoid any ambiguities.