The phrase "tell thing two" does not have a specific antonym, as it is not a commonly used or recognized term. However, if we break down the phrase, "tell" means to convey information, while "thing" refers to an object or idea. Therefore, some antonyms for "tell" could be keep quiet, restrain, or withhold. Similarly, for "thing," we could use nonentity, nothingness, or void. Overall, it is best to use specific and clear language to avoid confusion and to ensure effective communication.