The term 'ZERO-GAME' can be summarized as a GAME with no winners or losers. It is a type of GAME where the players do not compete against each other, but rather work together to achieve a common goal. The term is derived from the three-letter word 'SUM, ' which stands for 'simultaneous understanding and mutual respect.' This type of GAME encourages cooperation and collaboration among players, and is often used in educational settings to teach problem-solving skills.