Warning is an important word in our day-to-day life. It helps us to stay cautious and alert. However, sometimes we may want to use different words to express the same idea. Some synonyms for the word warning include alert, caution, admonition, notice, signal, hint, indication, and notification. These words can be used in various contexts, such as giving a warning about a dangerous situation, cautioning someone against a particular action, or simply alerting someone about an upcoming event. Each synonym has its own connotations and nuances, so choose the right word depending on the context and the tone you want to convey.