Unfortunately, "tip" with 4 letters doesn't give me enough context to understand what you're looking for. To help you better, could you please provide a bit more information about what kind of tip you're looking for, or perhaps offer a hint about the topic?
For example, are you looking for:
A word starting with "tip", like "hint" or "clue"?
A solution to a specific problem, like "hint" or "advice"?
A short piece of information, like "fact" or "datum"?