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."
例文
1. A megaphone boomed out, "This is the police.「
拡声器が鳴った。「私たちは警察です」
2.Making monetary policy by megaphone never leads to good results.
誇張された通貨政策は決して効果を上げない。
3.He hawks with a megaphone ,saving a lot of effort.