The word "dupe" is defined as someone who is easily fooled or tricked. Synonyms for this word include "gullible," "naive," "credulous," "innocent," "foolish," and "unsuspecting." These words all describe individuals who are vulnerable to being taken advantage of due to their lack of knowledge or experience. In addition, other synonyms for "dupe" include "deceived," "misled," "manipulated," "taken in," and "tricked." These words suggest a deliberate act of deception on the part of the person or group who is attempting to dupe someone. It is important to be aware of these synonyms and to always be vigilant in order to avoid being duped.