The term 'Basically Forever' can be broken down into two crossword solutions: EONS (4 letters) and EON (3 letters). EONS is a term used to describe an immense amount of time, usually referring to a period of millions or billions of years. EON, on the other hand, is a shorter period of time, usually referring to a span of hundreds of millions of years. Together, these two terms can be used to describe a length of time that is essentially infinite, or 'basically forever'.