The term 'It's Forbidden' can be represented by three different crossword solutions: TABOO (5 letters), Dont (4 letters), and Nono (4 letters). TABOO is a word that has been used for centuries to describe something that is forbidden or not allowed. It is derived from the Polynesian language and was first used in English in the late 1700s. Dont is a shortened form of the phrase 'Do not, ' which is used to indicate that something is forbidden or not allowed. Nono is a more modern term that is used to express the same idea as TABOO and don't. All three terms are used to indicate that something is not allowed or forbidden.