qīng​chu HSK2

understand

清楚 qīng​chu
understand adjective
to understand thoroughly or be certain about a situation

I am not clear about what happened.

clear adjective
clear and distinct in appearance, sound, or expression

His voice is very clear when he speaks.

Frequency

Movie subtitles
293.2 per million appears in 67% of films
Written text
112.0 per million

Details

HSK 2.0
Level 3
HSK 3.0
Level 2

Sources

Definitions
CC-CEDICT