megaphonic

/ˌmɛɡəˈfɑnɪk/
adjective
  1. Relating to or resembling a megaphone; making sound louder or projecting it.
    • The speaker's megaphonic voice filled the auditorium without any equipment.
    • She used a megaphonic tone to get the attention of the noisy crowd.
    • The megaphonic effect of the canyon made his voice echo for miles.
  2. Figuratively, very loud or forceful in expressing an opinion or message.
    • His megaphonic criticism of the government was heard around the world.
    • The activist's megaphonic style drew both supporters and critics.
    • Her megaphonic enthusiasm for the project inspired the whole team.
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