noun
truth and falsehood; fact and fiction
Refers to the mixture or distinction between what is true and what is false, often in narratives, reports, or rumors.
その話は虚実入り混じっていて、どこまで信じていいかわからない。
That story is a mix of truth and falsehood, so I don't know how much to believe.
記者は虚実を見極めるために複数の情報源を確認し
The reporter checked multiple sources to distinguish fact from fiction.