旺季
wàng jì · HSK 7
busy season
📈 旺 prosperous + 季 season = the booming season, when business peaks
旺 means flourishing or booming (the 日 sun radical hints at bright, thriving energy); 季 means season or quarter. Together: the peak period. Its opposite is 淡季 (dàn jì), the slack or off season, where 淡 means bland or thin.
旺 — sun 日 + flourish 王
Originally written 暀, meaning bright sunlight spreading outward. Over time the form simplified to 旺, combining 日 (sun) with 王 (king/flourish), which also hints at the pronunciation. The meaning shifted from 'bright' to 'flourishing, prosperous, vigorous.'
季 — grain 禾 on top + child 子 below
Originally an associative compound showing young grain (禾) and a child (子), suggesting a young or immature crop. From this it came to mean 'youngest' among siblings, then a season or quarter of the year — a recurring period like a harvest cycle. Today it mostly means 'season' or a surname.