变换
biàn huàn · HSK 6
to transform
🔄 变 (change) + 换 (swap) = transform by swapping
变 means change or alter; 换 means exchange or swap. Together they describe transformation through substitution — alternating one state for another. Common in math (变换 = transformation) and everyday change.
变 — top 䜌 (phonetic) + bottom 又 (hand)
Originally written 變, a phonosemantic compound: 䜌 (luán) gives the sound while 攵 (a hand with a stick) suggested the action of changing or transforming. The simplified form 变 keeps the phonetic top in reduced shape over 又 (hand). Core meaning: to change, transform, or alter.
换 — hand radical 扌 + 奂 huàn (phonetic)
换 is a semantic-phonetic compound. The hand radical 扌 signals an action done with the hands, while 奂 supplies the sound huàn. The original sense of exchanging or swapping things by hand extended naturally to broader meanings like 'change' or 'replace'.