| Main Entry: | |
| Part of Speech: | verb |
| Definition: | making noise continuously |
| Synonyms: | bombinate, buzz, chant, drawl, hum, intone, nasalize, purr, sound, strum, thrum, vibrate, whirr |
| Antonyms: | be quiet, silence |
| Main Entry: | hum |
| Part of Speech: | verb |
| Definition: | buzz, vibrate |
| Synonyms: | bombilate, bombinate, bum, bumble, croon, drone, moan, mumble, murmur, purr, rustle, sing, sing low, sound, strum, throb, thrum, trill, warble, whir, whisper, zoom |
| Main Entry: | pulsate/pulse |
| Part of Speech: | verb |
| Definition: | quiver, beat |
| Synonyms: | drum, fluctuate, hammer, oscillate, palpitate, pound, pump, roar, throb, thrum, thud, thump, tick, vibrate |
| Main Entry: | pulsate |
| Part of Speech: | verb |
| Definition: | beat |
| Synonyms: | drum, fluctuate, go pit-a-pat, hammer, oscillate, palpitate, pound, pulse, pump, quiver, roar, throb, thrum, thud, thump, tick, vibrate |