指甲 (zhǐ jia) means “fingernail”. It is an HSK 6 Chinese word in the HSK 3.0 vocabulary.
Practice each character:
她把指甲涂成了红色。
Tā bǎ zhǐjia tú chéng le hóngsè.
She painted her fingernails red.
Updated: 2026-05-27