liān鍊

to smelt

to smelt; to refine; to measure (one's words); to polish (one's wording); to temper; to steel; to cultivate

English Wiktionary, “鍊” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E9%8D%8A · confidence: High (Wiktionary, PH/Quanzhou/Jinjiang)