There are many synonyms for the phrase "running away" which can be used to add color and variety to your writing. Some possible synonyms include fleeing, escaping, absconding, bolting, darting, scampering, sprinting, dashing, galloping, and cantering. Each of these words presents a slightly different image and connotation, from the furtive and anxious fleeing, to the swift and graceful galloping. Using a variety of synonyms can keep your writing fresh and engaging, and can deepen the reader's understanding of your characters and their motivations. Whether you are writing fiction or non-fiction, consider experimenting with different ways to express the concept of "running away" using different synonyms.