A school for children, typically older than toddlers and younger than adolescents. In the U.S., elementary schools cover grades 1 through 5, and the ages of the children are usually 6-11 years. At a minimum, elementary schools will teach basic reading, writing, arithmetic, and history. Historically also used in the UK.
A private primary school which prepares its pupils for the common entrance examination most commonly at the age of thirteen, and subsequent entry into public school.
A private or public school intended to prepare its students to get into prestigious universities.