"Put one across" is a phrase that means to deceive or trick someone. There are several synonyms for this phrase, including "pull the wool over someone's eyes," "con," "dupe," "trick," "fool," and "deceive." Each of these words has a slightly different nuance, but they all refer to the act of tricking someone into believing something that is not true. For example, if you "pull the wool over someone's eyes," you are deceiving them by hiding the truth or using false information. Similarly, if you "dupe" someone, you are tricking them into believing something that is not true. In any case, these synonyms all refer to the act of deceiving someone for personal gain or amusement.