The Japanese noun '氏 (し)' refers to a person's surname or family name. It is often used in formal or written contexts, such as in official documents, news articles, or academic papers. For example: Mr. Tanaka's opinion「田中氏の意見」(たなかしのいけん). The term can also be used to refer to someone in a respectful manner, particularly when discussing their work or contributions. For instance: Dr. Suzuki's research「鈴木氏の研究」(すずきしのけんきゅう). Note that '氏' is typically used in third-person references and is not used when directly addressing someone.
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