àn​zhōng HSK7

secretly

暗中 àn​zhōng
secretly adverb
done in secret, on the sly, or surreptitiously

He secretly helped many students in need.

in the dark verb
physically in a place without light; in the shadows

Frequency

Movie subtitles
4.41 per million appears in 2% of films
Written text
9.07 per million

Details

HSK 3.0
Level 7

Sources

Definitions
CC-CEDICT