BIG NOW' The crossword solutions for the term 'BIG NOW' are GROWNUP (7 letters). The term 'BIG NOW' is often used to describe a person who has achieved a certain level of maturity and responsibility. It can also be used to describe someone who is in a position of power or influence. GROWNUP is a term that is used to refer to an adult, someone who has reached a certain level of maturity and responsibility.