Modus Operandi
noun /ˌmoʊ.dəs ˌɒp.əˈræn.daɪ/ — A person's habitual way of doing things; their method of operation
Definition
A person's or organisation's characteristic way of operating — their habitual method, their typical approach. In criminal investigations, a criminal's modus operandi is the signature pattern of their crimes.
Beyond the definition
Modus operandi is the fingerprint of behaviour — the pattern that, once seen, reveals character. Everyone has one: the way they approach problems, manage conflict, build relationships. The MO is who you are, distilled to method.
Origin & history
Latin: 'way of operating'. From modus (manner, way) + operandi (gerund of operari, to work). Used in criminology to describe the distinctive methods used by a criminal across multiple offences.
Example sentences
Illustrative sentences for learning, not verified community posts or sourced quotations.
The detective recognised the modus operandi immediately — the same as three previous cases.
His modus operandi in negotiations was silence: he waited for the other side to offer more.
Every leader has a modus operandi. The question is whether they've examined theirs.
How to use it
This entry uses a noun. Follow the examples for articles and singular or plural forms; not every noun takes “a” or “an.”
Choose “Modus Operandi” when the meaning fits your context: A person's or organisation's characteristic way of operating — their habitual method, their typical approach. In criminal investigations, a criminal's modus operandi is the signature pattern of their crimes.
Synonyms
method, approach, procedure, operating pattern, MO
Antonyms
improvised, uncharacteristic behaviour
Related words
Modus Operandi vs habit
Modus operandi describes a specific, repeating method or procedure used to accomplish a task. A habit is a personal behavioral tendency, while a modus operandi is often used in forensic or professional contexts.
Word in the Wild
See how this word appears in life, language and stories.
Illustrative sentences and imagined stories for learning — not verified sightings, interviews, or sourced quotations.
Fictional scene
Chef Precisely Julienneing Vegetables
A chef is at a prep station, carefully julienning vegetables with sharp, efficient, and precise movements.
The chef follows a signature pattern of operation. A modus operandi is this characteristic, habitual method of operating, a way of working that is so consistent it serves as a signature for the person or organization.
Image credit: Wordspun · AI-generated conceptual illustration
Questions about this word
What does "Modus Operandi" mean?
Modus Operandi is noun meaning: A person's habitual way of doing things; their method of operation. A person's or organisation's characteristic way of operating — their habitual method, their typical approach. In criminal investigations, a criminal's modus operandi is the signature pattern of their crimes.
Where does the word "Modus Operandi" come from?
Latin: 'way of operating'. From modus (manner, way) + operandi (gerund of operari, to work). Used in criminology to describe the distinctive methods used by a criminal across multiple offences.