zhēn​shí​xìng

authenticity

真实性 (真實性) zhēn​shí​xìng
authenticity noun
the quality of being genuine, truthful, or factually accurate; veracity or validity

The judge questioned the authenticity of this written testimony in court.

reality noun
the state or quality of being real, actual, or lifelike

This sound effect enhances the realism of the virtual scene.

Frequency

Movie subtitles
1.73 per million appears in 1% of films
Written text
7.14 per million

Sources

Definitions
CC-CEDICT