The term 'BIG TIME' can be defined by three crossword solutions: AGE (3 letters), EPOCH (5 letters), and WHEEL (5 letters). AGE is a measure of the length of time that something has existed or that someone has lived. An EPOCH is a period of time in history or a person's life, often one marked by notable events or particular characteristics. Finally, a WHEEL is a circular object that rotates on an axle and is used to move vehicles or other objects. Together, these three words represent the concept of 'BIG TIME, ' which can refer to a long period of time, a significant event, or a powerful force.