Full disclosure refers to a complete and open communication of all relevant information, facts or circumstances. It means being honest and transparent in sharing everything that is known about something, so as not to leave out any important details which could cause confusion or misunderstanding later on. The phrase "full disclosure" often implies that the person making the disclosure has nothing to hide, and wants to be upfront and truthful with others. In legal contexts, full disclosure is an obligation to reveal all relevant information that may affect a decision being made by another party.