The term 'DON'T BET ON IT' is a phrase used to express doubt or uncertainty about something. The crossword solutions for this phrase are PASS (4 letters), NAG (3 letters), and SURELOSER (9 letters). PASS is a verb meaning to move past or go by something, while NAG is a verb meaning to persistently scold or complain. SURELOSER is a noun meaning someone or something that is certain to fail or lose. Together, these words form the phrase 'DON'T BET ON IT', which is used to express doubt or uncertainty about something.