Generation is a term used to describe a group of people born and living around the same time. FORMATION, with nine letters, is the process of creating something, such as a generation. PROPAGATION, with eleven letters, is the act of spreading something, such as a generation's beliefs or values. GENESIS, with seven letters, is the origin or BEGINNING of something, such as a generation. DEVELOPMENT, with eleven letters, is the process of growth or improvement, such as a generation's progress. BEGINNING, with nine letters, is the start of something, such as a generation. GAP, with three letters, is a break or interruption in continuity, such as between generations. ERA, with three letters, is a period of time, such as a generation's lifespan. AGE, with three letters, is a length of time, such as a generation's duration. XER, with three letters, is a person born during a certain period, such as a generation. XERS, with four letters, is a group of people born during a certain period, such as a generation.