A kindergartener is a child who attends kindergarten, the first year of formal education in the United States education system. There are several synonyms for this term. One is "preschooler," which refers to a child who attends school before kindergarten. Another is "pre-kindergarten student," which indicates a child who is enrolled in a program designed for children before they begin formal schooling. "Early years student" is another synonym, which encompasses children from birth through kindergarten age. Finally, "young learner" is a term that can also be used to describe a kindergartener, emphasizing their early stage in the process of education and development.