The term 'MANY A TOURNAMENT' can be solved by the four-letter word 'OPEN'. An OPEN tournament is a type of sporting event that is OPEN to any participant who meets the eligibility requirements. This type of tournament is often used in sports such as golf, tennis, and swimming, where players compete against each other for a prize. OPEN tournaments are usually organized by a governing body or organization, and the rules and regulations of the tournament are set by the organizers.