zào​yīn HSK7

noise

噪音 zào​yīn
noise noun
loud, unpleasant, or unwanted sound

The traffic noise here is too loud for me to fall asleep.

static noun
unwanted electrical disturbances or interference in a signal

Due to the poor signal, there was a lot of static coming from the TV.

Frequency

Movie subtitles
11.8 per million appears in 4% of films
Written text
9.07 per million

Details

HSK 2.0
Level 6
HSK 3.0
Level 7

Sources

Definitions
CC-CEDICT