Definitions:

1. a vehement and vociferous advocacy of a cause noun
   • the warmongers kept up their drumbeat on Iraq
2. the beating of a drum as a signal for lowering the flag at sundown noun
   • The cadets heard the drumbeat and knew that the flaglowering ceremony was about to start.

Synonyms:

• rataplan
• rub-a-dub

NearBy Words:

• drumbeater