The word "tell-tale" typically refers to a person or thing that reveals a fact or information which is not supposed to be disclosed. It can also relate to an object that serves as evidence or a sign of something. Some synonyms for "tell-tale" include revealing, disclosing, indicating, betraying, pointing out, divulging, and displaying. Other words that can be used in similar contexts might include apparent, evident, conspicuous, manifest, or overt. When looking for alternative terms to use in place of "tell-tale," it is important to consider the specific context in which the word is being used in order to find the most accurate substitute.