There are several synonyms for the phrase "gives an edge to", such as enhances, boosts, improves, and elevates. Each of these words implies a positive effect on whatever is being described. For example, using a specific skill set can enhance one's job performance, a new product can boost a company's sales, practicing a sport can improve one's athletic abilities, and a stylish outfit can elevate one's appearance. Finding the right word to convey the desired message is important in effectively communicating thoughts and ideas. Using synonyms can not only add variety to one's vocabulary but also improve the overall impact of communication.