Simplified:

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

shú ㄕㄨˊ

    • to redeem
    • to ransom

How 贖 is written

    部首 radical
    笔画 strokes
    22, with 15 after the 部首
    结构 structure
    左右结构
    偏旁 parts

    Sources