thrum (n.)
- barrage
- beat
- beating
- birr
- boom
- bum
- burr
- buzz
- count
- drone
- drum
- drumbeat
- drumfire
- drumming
- flutter
- hum
- palpitation
- paradiddle
- patter
- pick
- pitter-patter
- pluck
- plunk
- pound
- pounding
- pulsation
- purr
- rat-a-tat
- rat-tat
- rataplan
- roll
- rub-a-dub
- ruff
- ruffle
- spatter
- splatter
- splutter
- sputter
- strum
- tap
- tat-tat
- tattoo
- throb
- throbbing
- thump
- thumping
- tom-tom
- twang
- whir
- whiz