Translation guide
The English abbreviation "MO" can stand for "modus operandi" (a particular way of doing something, especially a criminal's method) or "medical officer." This guide focuses on the more common meaning of "modus operandi" and how to express it naturally in Japanese.
彼の手口は何ですか？
What's his MO?
Use when asking about someone's modus operandi, especially in a criminal context.
Expressing the concept of a characteristic way of doing something, especially a habitual method or pattern of behavior, often used in crime contexts.
The most direct and common translation for 'modus operandi,' especially in criminal contexts. It refers to the method or trick used to commit a crime.
犯人の手口はいつも同じだ。
The criminal's MO is always the same.
警察は彼の手口から犯人を特定した。
The police identified the suspect from his MO.
A general term for 'way of doing things.' It can be used for MO in a broader sense, not limited to crime. Less specific than 手口.
彼のやり方はいつも慎重だ。
His MO is always cautious.
A more formal or technical term specifically meaning 'criminal modus operandi.' Used in legal or police contexts.
犯行手口から同一犯の可能性が高い。
Based on the MO, it's highly likely to be the same perpetrator.
Referring to a doctor in charge of medical services in an organization, such as a hospital, military, or company.
The standard translation for 'medical officer' in military or official contexts.
彼は軍の医官として勤務している。
He serves as a medical officer in the military.
A more descriptive term for a medical officer in a non-military organization, such as a company or government agency.
会社の医療担当官が健康診断を手配した。
The company's medical officer arranged the health checkup.
The abbreviation 'MO' is not commonly understood in Japanese. Always use a full Japanese term like 手口 or やり方 depending on context.