preschool child; preschooler
Refers to a child who has not yet entered elementary school, typically under 6 or 7 years old in Japan. Used in educational and administrative contexts.
An event for preschool children was held at the library.
This facility can be used by preschool children and their guardians.
就学前 is an adjective or adverbial phrase meaning 'before entering school', while 未就学児 specifically refers to the child.
幼児 is a broader term for 'infant' or 'young child' (typically 1–6 years old), while 未就学児 emphasizes the not-yet-schooled status.
Compound of 未 (mi, 'not yet'), 就学 (shūgaku, 'entering school'), and 児 (ji, 'child').