とうにん当人tounin
1.
The individual directly involved in a specific matter or situation, often implying personal responsibility or connection.
2.
The person in question, typically signifying the actual individual rather than a representative or someone else.
3.
The specific person being discussed or referenced, highlighting their role or perspective in a given context.
Example:
当人のいないところで悪口を言うべきでない。