Frounce, a word with French origins meaning "wrinkle or fold," can be replaced with various synonyms to avoid repetition or to impart better meaning to the context. Some such synonyms include crease, crinkle, fold, furrow, pucker, rinkle, and wrinkle. Depending on the usage or context of the word, several other synonyms can be used to convey similar meanings, such as pleat, ruffle, and corrugate. While many of these terms share similar definitions, they differ slightly in tone, and it is essential to ensure that the synonym used does not alter the intended meaning of the sentence or phrase.