合适
héshì · HSK 2
fit
🧩 合 = combine/fit + 适 = suitable → fits suitably
合 means to join or match; 适 means suitable or apt. Together they describe something that fits the situation well — the right size, the right person, the right moment. Think 'matches + suits'.
合 — 乛 (lid/roof) + 口 (mouth)
Originally a pictograph of a lidded vessel — a cover (亼) closing over an opening (口) — giving the core sense of 'come together, join, fit.' From 'fit/match' it extended to 'combine, unite, agree' and to measure-word uses. The reading hé reflects this 'joining' meaning.