Turnup is a versatile word that can mean many things, from the vegetable to the collar of a shirt. However, there are also a few synonyms that can be used in its place depending on the context. One synonym that is often used is the word "increase". This is commonly used in business contexts when talking about increasing profits or sales. Another synonym for turnup is "arrival". This is used when talking about someone's appearance at an event or gathering. Other synonyms for the word turnup include "upturn", "upswing", and "comeback". These words are all used to denote a positive change or improvement.