春天
chūn tiān · HSK 2
spring
🌸 春 = spring season + 天 = sky/day; together: the season of spring
春 by itself means spring; adding 天 (sky/day) makes the two-syllable word 春天, parallel to 夏天 summer, 秋天 autumn, 冬天 winter. The 天 suffix marks it as a season-word.
天 — 一 (one/sky) above 大 (big person)
Originally a pictograph of a person (大) with an emphasized head, representing what is above — the sky or heavens. The top stroke evolved into 一, symbolizing the vast expanse overhead. From 'sky' it extended to mean 'day,' 'heaven,' and 'nature.'