The term 'Casino Group, Often' can be solved by the crossword answer 'TRIBE', which is a five-letter word. A TRIBE is a social group of people that share a common culture, language, and history. Tribes are often associated with Native American cultures, but they can also be found in other parts of the world. In the context of casinos, tribes are often involved in the ownership and operation of casinos, as well as the regulation of gambling activities.