qí​hào

banner

旗号 (旗號) qí​hào
banner noun
a military banner or flag, often used figuratively and pejoratively to mean a pretext or ostensible purpose

Under the banner of reform, he is actually seeking personal gain.

flag signal noun
a signal made with flags; semaphore communication

Frequency

Movie subtitles
0.540 per million appears in 0% of films
Written text
3.69 per million

Sources

Definitions
CC-CEDICT