The crossword solutions for the term 'TURN OUT TO BE' are 'PROVE' and 'ENDUP'. The phrase 'TURN OUT TO BE' is a common idiom that means to eventually be revealed or discovered. It is often used when something is uncertain, but then it is proven to be true. The word 'PROVE' is a verb meaning to demonstrate or show that something is true. The word 'endup' is a verb meaning to arrive at a certain point or result. Therefore, the two words together can be used to describe the phrase 'TURN OUT TO BE' as demonstrating or showing that something is true and arriving at a certain point or result.