虚假 (xū jiǎ): 거짓

After investigation, police found that the advertisement information released by this company was completely false; there was no so-called special-effect product at all.

He met a friend online who claimed to be a wealthy businessman, but later he found that the person's identity was false, and the purpose was to defraud money.

This restaurant's rating was absurdly high, but later it was exposed that the business had boosted it with fake reviews; the actual dishes were expensive and tasted bad.

If fake data is cited in an academic paper, not only will it be retracted, but it will also severely affect the author's academic reputation.

In court, witnesses must state the facts truthfully; providing false testimony entails legal responsibility.