When you have made a decision, sometimes you need other words to express that choice. There are plenty of synonyms for "decided on" that can add variety and depth to your language. Some of these synonyms include "settled on," "opted for," "chose," "resolved on," "determined on," and "made up one's mind about." Each of these phrases has a slightly different connotation and can be used to express a different tone or nuance. By exploring these synonyms, you can expand your vocabulary and develop a more sophisticated and nuanced writing style.