Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
duplicity
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "duplicity" is correct and usable in written English.
It can be used to describe deceitfulness or double-dealing, often in the context of someone's actions or intentions being contradictory or dishonest. Example: "Her duplicity became evident when she was caught lying to both her friends and her colleagues."
✓ Grammatically correct
News & Media
Encyclopedias
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
The story's pretty much the same, of course – criminals posing as musicians in a little old lady's guesthouse, as they plot a bank job; little old lady finds the loot; duplicity and betrayals and deaths ensue, just not in the way you'd think.
News & Media
Few Tunisians were surprised at this French duplicity.
News & Media
He wasn't able to drive it and remember his lines at the same time, and after an hour of lurching stops and grinding gears he had to admit his duplicity.
News & Media
"The contrasting emotions, the duplicity, it's all pure stagecraft, up to us to get it right and to Sean to make sure the audience gets the right view every second".
News & Media
She comes across as an entirely self-created being, a triumph of mind over matter, duplicity over emotion, a cold, hard surface, reflecting back whatever she thinks her audience is looking for.
News & Media
He's a character of that era, the 50s, when there was quite a lot of… moral duplicity.
News & Media
Mr Lenihan's emphatic denials of duplicity have failed to repair the damage.
News & Media
Time and again in negotiations over Iran's nuclear programme, America and its allies assumed Iranian duplicity and insincerity.
News & Media
Bodo Hombach, former head of Mr Schröder's chancellery with whom Mr Lafontaine constantly clashed, was unqualified for the job and steeped in duplicity and intrigue (no examples given).Mr Lafontaine allows his thirst for revenge to show through more when talking of Mr Schröder, his one-time friend, turned deadly rival.
News & Media
WHEREAS Palestinian negotiators have been reviled for their alleged weakness and duplicity by many Arab commentators following the publication by the Al Jazeera television channel of leaked documents concerning negotiations between Israelis and Palestinians mainly between 2007 and 2008, peace-mongers in Israel have been boosted by them.
News & Media
Distracted by wars in Afghanistan and Iraq, and repelled by the duplicity of Yasser Arafat, he gave Mr Sharon a free pass, extracting nothing more than Israel's unilateral withdrawal from Gaza, a gamble that backfired.In January, however, a new president will have a chance to push for peace.
News & Media
Expert writing Tips
Best practice
When using "duplicity", ensure the context clearly demonstrates intentional deceit or a contradiction in someone's actions or words. Clarity is key to conveying the intended meaning.
Common error
Avoid using "duplicity" when a simpler word like "deceit" or "dishonesty" suffices. "Duplicity" carries a stronger connotation of betrayal and calculated deception, so reserve it for situations where this level of intent is evident.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "duplicity" is as a noun. It refers to the quality or state of being deceptive or double-dealing. Ludwig examples show it functioning as the object of verbs (e.g., "denials of duplicity") or as a descriptive attribute (e.g., "a triumph of duplicity over emotion").
Frequent in
News & Media
64%
Encyclopedias
15%
Science
8%
Less common in
Formal & Business
8%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "duplicity" is a noun that describes intentional deceit or double-dealing. Ludwig AI confirms it is grammatically correct and frequently used, particularly in news and media contexts. While synonyms like "deceit" or "hypocrisy" exist, "duplicity" carries a stronger connotation of betrayal. When using "duplicity", ensure that the context accurately reflects deliberate deception to effectively convey your intended meaning. The phrase is suitable for neutral to formal registers and should be used judiciously to avoid misinterpretations.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
Deceit
A general term for misleading or hiding the truth.
Double-dealing
Implies acting in bad faith with two parties.
Deception
The act of intentionally misleading someone.
Treachery
Betrayal of trust; deceptive action.
Fraudulence
Involves deceitful actions for personal gain.
Insincerity
Lack of genuine feeling or belief.
Hypocrisy
Claiming to have moral standards one's own behavior does not conform to.
Guile
Cunning intelligence; artful deception.
Underhandedness
Acting in a secretive and dishonest manner.
Deviousness
Willingness to use dishonest tactics to achieve goals.
FAQs
How can I use "duplicity" in a sentence?
You can use "duplicity" to describe someone's intentional deceptiveness or double-dealing. For example, "The politician's "duplicity" was revealed when it was discovered he had been secretly working against his own party".
What are some synonyms for "duplicity"?
Some synonyms for "duplicity" include "deceit", "double-dealing", "deception", and "hypocrisy". The best choice depends on the specific context.
What is the difference between "duplicity" and "hypocrisy"?
"Duplicity" refers to the act of being intentionally deceptive or double-dealing, while "hypocrisy" refers to claiming to have certain beliefs or virtues that one's own actions contradict. "Duplicity" is a broader term encompassing various forms of deceit, whereas "hypocrisy" specifically involves a discrepancy between stated beliefs and actual behavior.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested