The term 'ADD AS A BONUS' can be broken down into four crossword solutions: EXTRA (5 letters), PLUS (4 letters), TOSSIN (6 letters), and THROWIN (7 letters). The term 'ADD AS A BONUS' is often used to describe an additional benefit or reward given to someone for their work or effort. The four crossword solutions all refer to the idea of adding something EXTRA, with EXTRA referring to an additional item or amount, PLUS referring to the mathematical symbol for addition, TOSSIN referring to the act of throwing something in, and THROWIN referring to the act of throwing something in as an EXTRA.