Bombination
The Century Dictionary and Cyclopedia
noun.
Buzz; humming noise.
the GNU version of the Collaborative International Dictionary of English
noun.
A humming or buzzing.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
the act or sound of humming or buzzing;
hum
,
buzz
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
sound of rapid vibration
Hypernym
Words that are more generic or abstract
sound