v. 1 buzz, drone, thrum, murmur, whirr, purr, vibrate, Technical bombinate or bombilate I want to smell the wild flowers and hear the bees hum once again 2 bustle, stir, be active, move briskly, Colloq tick (over) Within three months of completion, the new plant was humming 3 intone I said, 'Do you know your rock guitar is keeping me awake?', and he replied, 'No, man, but if you hum it I'll try to play it '
n. 4 buzz, buzzing, drone, droning, thrum, thrumming, murmur, murmuring, murmuration, whirr, whirring, purr, purring, vibration From the other room came the hum of conversation