デマ

でま
noun
false rumor; hoax; misinformation
1. false rumor; hoax; misinformation
A deliberately or carelessly spread piece of false information. Abbreviated from the German word 'Demagogie' (demagoguery). In modern Japanese, it refers broadly to any false rumor or piece of misinformation, especially one spread online or through word of mouth.
それはデマだよ。
That's a false rumor.
SNSでデマが(ひろ)がっている。
Misinformation is spreading on social media.
災害(さいがい)()にデマを(なが)すのは非常(ひじょう)危険(きけん)行為(こうい)だ。
Spreading false rumors during a disaster is an extremely dangerous act.

ETYMOLOGY:
From German 'Demagogie' (demagoguery). Originally used in political contexts to describe propaganda, but the meaning has broadened to include any false rumor or misinformation.

USAGE:
デマ is stronger than (うわさ) (rumor), as it specifically implies the information is false. It has become especially common in the context of internet misinformation.

COMMON COLLOCATIONS:

  • デマを(なが)す (to spread a false rumor)
  • デマが(ひろ)がる (misinformation spreads)
  • デマ情報(じょうほう) (false information)
  • デマに(まど)わされる (to be misled by misinformation)