订
dìng · HSK 3
subscribe to
📝 言 (speech) + 丁 (nail) — pin down words: agree, subscribe, revise
订 combines 言 (speech/words) with 丁 (a nail, also giving the 'dīng/dìng' sound). The sense: nailing down spoken commitments — subscribing, agreeing, drafting, or revising a written agreement.
订 — speech radical 讠 + nail 丁
订 combines the speech radical 讠 (word) with 丁 (nail), which also hints at the sound. The idea is words 'nailed down' into an agreement, giving meanings like to settle, arrange, subscribe, or book. 丁 is mainly phonetic here but reinforces the sense of fixing something firmly.