A white lie is defined as a harmless or trivial lie, often told with the intent of sparing someone's feelings or avoiding conflict. However, there are plenty of synonyms that can be used to describe this type of lie. Some common synonyms include fib, half-truth, little white lie, harmless falsity, minor deception, and benign untruth. Other terms that may be used to describe a white lie include a polite falsehood, a kind-hearted lie, a tactful untruth, or a small dishonesty. While these types of lies may not seem very serious, it's important to remember that honesty is always the best policy in the long run.