A critical moment is a time of great importance or significance, often when a decision must be made. The term 'CRUNCH' is a six-letter word that can be used to describe such a moment, as it implies a situation in which a lot of pressure is being applied. Another term for a critical moment is 'BREAKINGPOINT', which is a thirteen-letter word that implies a situation in which a decision must be made that could have far-reaching consequences.