Ahead of time' is an expression used to describe something that is done before the expected or required time. The crossword solutions for this term are FAST (4 letters), PREPAY (6 letters), EARLY (5 letters), INADVANCE (9 letters), and BEFOREHAND (10 letters). FAST means to do something quickly, PREPAY means to pay for something before receiving it, EARLY means to do something before the expected time, INADVANCE means to do something before it is due, and BEFOREHAND means to do something in advance. All of these words can be used to describe doing something ahead of time.