鞏固

Simplified: 巩固

On the HSK 6 vocabulary list, at CEFR level B2.

gǒnggù ㄍㄨㄥˇ ㄍㄨˋ

    • to consolidate to strengthen
    • firm solid stable

Character by character

Other words read gǒnggù

gonggu with other tones

Sources