The term 'LOTS OF TIME' can be represented by two crossword solutions: EON (3 letters) and EONS (4 letters). An EON is an immeasurably long period of time, typically used to refer to the longest divisions of geological time. It is often used interchangeably with 'AEON, ' which is derived from the same Greek root. An EON is divided into eras, which are further divided into periods, epochs, and ages. EONS are the largest division of geological time and can span hundreds of millions of years. EONS are also used in astronomy to refer to very long periods of time.