The crossword solution for the term 'A Bridge TOO Far' is the three-letter word 'TOO'. This phrase is a popular idiom that means to attempt something that is beyond one's capabilities. It originates from the title of a 1974 book by Cornelius Ryan about Operation Market Garden, a failed World War II military operation in the Netherlands. The phrase has since been used to describe any situation where someone has attempted something that was TOO difficult or ambitious.