modus operandi

noun

mo·​dus ope·​ran·​di ˌmō-dəs-ˌä-pə-ˈran-dē How to pronounce modus operandi (audio)
-ˌdī
plural modi operandi ˈmō-ˌdē- How to pronounce modus operandi (audio)
ˈmō-ˌdī-
Synonyms of modus operandinext
: a method of procedure
… the best approach … was to do things through quiet persuasion, which is his modus operandi.James Traub
especially : a distinct pattern or method of operation that indicates or suggests the work of a single criminal in more than one crime
… got her picture identified, discovered her modus operandi, and put a stakeout on her neighborhood. Time

Examples of modus operandi in a Sentence

Recent Examples on the Web
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The modus operandi extends beyond the interior, shaping how each space relates to the sea and the owner’s style of living. Rachel Ingram, Robb Report, 31 May 2026 Not surprisingly, Marx isn’t the only gubernatorial candidate for whom exaggeration and mythologizing are the modus operandi. Krista Kafer, Denver Post, 28 May 2026 Killing became the modus operandi of politics. Roberto Andrés, The Dial, 28 May 2026 Your schedule, routines or work environment could feel especially chaotic today, with interruptions throwing off your modus operandi and usual sense of control. Valerie Mesa, PEOPLE, 22 May 2026 See All Example Sentences for modus operandi

Word History

Etymology

New Latin

First Known Use

1654, in the meaning defined above

Time Traveler
The first known use of modus operandi was in 1654

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Cite this Entry

“Modus operandi.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/modus%20operandi. Accessed 1 Jun. 2026.

Legal Definition

modus operandi

noun
mo·​dus ope·​ran·​di ˌmō-dəs-ˌä-pə-ˈran-dē, -ˌdī How to pronounce modus operandi (audio)
: a distinct pattern or method of operation especially that indicates or suggests the work of a single criminal in more than one crime
Etymology

New Latin, manner of operating

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