Traditional (Taiwan):

On the HSK 7-9 vocabulary list, at CEFR level C2.

xiù ㄒㄧㄡˋ

    • to rust

How 锈 is written

    部首 radical
    笔画 strokes
    12, with 7 after the 部首
    结构 structure
    左右结构
    偏旁 parts
    形旁 meaning
    声旁 sound

    Sources