The term 'Bold Challenge' can be summarized as a daring endeavor that requires courage and strength. It is an undertaking that is not for the faint of heart, and requires a person to take risks and push themselves beyond their comfort zone. The crossword solution for this term is 'DARE', which is an acronym for 'Defy Authority, Risk Everything'. This phrase encapsulates the spirit of a bold challenge, as it encourages people to take risks and defy the status quo in order to achieve something great.