humming (root: hum)

• POS: Adjective, Verb (usu participle)
• HYPHEN: hum=ming

CIDE DICTIONARY

humming, a. 

 Emitting a murmuring sound; droning; murmuring; buzzing.  [1913 Webster]

humming, n. 

 A sound like that made by bees; a low, murmuring sound; a hum.  [1913 Webster]

Hummingale, lively or strong ale. Dryden. -- Humming-bird moth (Zoöl.), a hawk moth. See Hawk moth, under Hawk, the bird.

THESAURUS

humming

bel canto, birring, bombilation, bombinating, bombination, booming, bravura, burring, busy, buzzing, choral singing, coloratura, croon, crooning, droning, folk singing, fussy, hopping, hum, hustling, intonation, lively, low rumbling, lyricism, operatic singing, popping, purring, scat, scat singing, singing, sol-fa, sol-fa exercise, solfeggio, solmization, song, thrumming, tonic sol-fa, vocal music, vocalization, warbling, whirring, whizzing, yodel, yodeling