A more thorough explanation:

Definition: A dossier is a collection of documents or papers that relate to a particular subject or person.

Example: A company may keep a dossier on an employee that includes their resume, job application, performance evaluations, and disciplinary records.

Explanation: The example shows how a dossier can be used in a professional setting to keep track of important information about an employee. The collection of documents in the dossier can be used to make decisions about promotions, raises, or disciplinary actions.

Example: A detective may create a dossier on a suspect that includes their criminal record, known associates, and surveillance footage.

Explanation: In this example, the dossier is used in a criminal investigation to gather information about a suspect. The detective can use the information in the dossier to build a case against the suspect.