gǔn​gǔnGǔn​gǔn

billow

滚滚 (滾滾) gǔn​gǔn frequency
billow descriptive
to roll or billow, often describing smoke, dust, or clouds

远处浓烟滚滚

yuǎn​chù nóng​yān gǔn​gǔn.

Thick smoke is billowing in the distance.

surge descriptive
to flow or surge forward in a powerful, continuous stream

The waters of the great river roll eastward.

滚滚 (滾滾) Gǔn​gǔn
panda nickname descriptive
nickname for a panda

This giant panda is lying on the grass being adorable.

Frequency

Movie subtitles
1.28 per million appears in 1% of films
Written text
11.7 per million

Sources

Definitions
CC-CEDICT