细节 (xì jié): detail

The key details of this contract are all in the appendix; you must check them carefully before signing.

She is very observant; she can notice even a tiny detail on someone's tie.

Based on the details left at the scene, the police quickly identified the suspect.

When writing a thesis, the professor asked us to pay attention to every detail, including punctuation and citation format.

The details in this movie are handled so realistically that the audience feels as if they are there.