質疑

Simplified: 质疑

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

zhìyí ㄓˋ ㄧˊ

- to call into question to challenge (the truth or validity of)

Character by character

Other words read zhìyí

In the same tone

置疑

zhiyi with other tones

All 10 words read zhiyi in any tone

Sources