air·waves

[air-weyvz]
plural noun
the media of radio and television broadcasting: The airwaves were filled with news flashes about the crisis.

Origin:
1895–1900, for earlier sense; air1 + waves (plural of wave)

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World English Dictionary
airwaves (ˈɛəˌweɪvz) [Click for IPA pronunciation guide]
 
pl n
informal radio waves used in radio and television broadcasting

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Airwaves is always a great word to know.
So is bezoar. Does it mean:
a stew of meat, vegetables, potatoes, etc.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
Example sentences
Adding to this have been the many campaign ads attacking big government that
  have filled the airwaves as the election approaches.
Digital broadcasting will free up airwaves for use by emergency responders.
Mobile phone companies and other would-be users of wireless spectrum have long
  lusted after television's empty airwaves.
Don't saturate the airwaves with endless, over-sentimentalized retrospectives
  and ceremonies.
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