HUMMING Meaning of HUMMING in English — hummingly , adv./hum"ing/ , adj.1. making a droning sound; buzzing. 2. very busy; briskly active: a humming office.[ 1570-80; HUM + -ING 2 ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012