[ meg-uh-fohn ]
/ ˈmɛg əˌfoʊn /


a cone-shaped device for magnifying or directing the voice, chiefly used in addressing a large audience out of doors or in calling to someone at a distance.Compare bullhorn.

verb (used with or without object), meg·a·phoned, meg·a·phon·ing.

to transmit or speak through or as if through a megaphone.


Nearby words

  1. megan,
  2. megan's law,
  3. meganthropus,
  4. megaparsec,
  5. megaphanerophyte,
  6. megaphonic,
  7. megaphyll,
  8. megapixel,
  9. megaplex,
  10. megapode

Origin of megaphone

An Americanism dating back to 1875–80; mega- + -phone

Related formsmeg·a·phon·ic [meg-uh-fon-ik] /ˌmɛg əˈfɒn ɪk/, adjectivemeg·a·phon·i·cal·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for megaphone

British Dictionary definitions for megaphone


/ (ˈmɛɡəˌfəʊn) /


a funnel-shaped instrument used to amplify the voiceSee also loud-hailer
Derived Formsmegaphonic (ˌmɛɡəˈfɒnɪk), adjectivemegaphonically, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for megaphone



1878, coined (perhaps by Thomas Edison, who invented it) from Greek megas "great" (see mega-) + phone "voice" (see fame (n.)). Related: Megaphonic. In Greek, megalophonia meant "grandiloquence," megalophonos "loud-voiced."

Online Etymology Dictionary, © 2010 Douglas Harper