Zilches is often used to describe something that is worth nothing. However, there are several synonyms that can be used to convey the same meaning. One such word is "nada," which is a Spanish word that means "nothing." Another synonym for zilches is "nil," which stands for nothing or zero. "Zip" is another term that can be used to describe something that is worth nothing. The word "zippo" is also a slang term used to convey the same idea. "Squat" is another synonym for zilches, which is used to emphasize that something is worth absolutely nothing. In conclusion, several synonyms can convey the same meaning as zilches.