How do you say index in Chinese?
— 索引 (suǒyǐn)

Related synonyms for index in Chinese
forefinger食指 (shízhǐ)
power力量 (lìliang), 能量 (néngliàng), 功率 (gōnglǜ)
Generic synonyms for index in Chinese
finger手指 (shǒuzhǐ)