WHOLE CHARACTER
千
thousand; 1,000 (十个一百); very many (喻极多); bound form in 秋千 (a swing)
千 is a thousand: 一千 '1,000', 千克 'kilogram' — and an 秋千 'swing' to play on.
Taught as one complete written unit (3 strokes): a falling stroke over a 十-like cross. ZDIC's account is 形声 in the historical source; no modern split is claimed.