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
interlock
Grammar usage guide and real-world examplesUSAGE SUMMARY
"interlock" is a correct and usable word in written English.
You can use it to describe two things that fit together or interact with each other in a way that relies on their connection. For example, "The interlock between the two companies will result in a powerful partnership."
✓ Grammatically correct
News & Media
Encyclopedias
Science
Alternative expressions(3)
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
58 human-written examples
"If a safety interlock has been overridden, it's a big no-no.
News & Media
My map will show how committees connect into the larger picture of governance in our democracy and my online database will allow you to ask, "where is my voice?" The committee interlock graph reveals how citizens are inter-connected through different committees (note – only public domain data is used, and only as related to the Hunter Valley in NSW).
News & Media
That's why my committee interlock map is the first attempt to make visible the otherwise invisible process of citizen participation in committee processes.
News & Media
Her own "History of Love" presents at first a set of disconnected puzzle pieces, which the novel proceeds artfully to interlock.
News & Media
Alan Hollinghurst's "The Spell" probes the motives and manners of four gay men whose lives interlock: an architect who fears that his appeal may be waning; his hedonistic son; a flamboyant, failed actor; and a lanky, reticent civil servant from the Foreign Office who discovers the rejuvenating effects of Ecstacy and House Music.
News & Media
When we witness Riggan's play, we are enveloped in the glow of stage lights, and the temperature of the film shifts as if we are entering Riggan's subconscious.Alejandro González Iñárritu, the director, is best known for "21 Grams" and "Babel", films whose narrative cogs interlock like ingenious machinery.
News & Media
Snake vertebrae interlock firmly with one another; a hemispherical posterior projection from each articulates with an anterior concavity (i.e., a cup-shaped depression) on the vertebra in front of it.
Encyclopedias
In some cases they cross in such a way that they interlock, or fall between one another, with no two notes ever sounding together.
Encyclopedias
The effect is such that both series of equally spaced notes seem to interlock like the teeth of a cogwheel.
Encyclopedias
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
I believe this safety-interlock switch may not be as effective as you think, because I'm pretty sure my heart's shredding was accidental.
News & Media
When he is allowed to drive again, he will have to install an ignition-interlock device, which measures the concentration of alcohol in a driver's breath before his car is permitted to start.
News & Media
Expert writing Tips
Best practice
Use "interlock" when describing physical connections or abstract relationships that are mutually dependent and create a secure, integrated system.
Common error
Avoid using "interlock" when describing one-way connections or relationships where elements do not mutually influence or secure each other. Instead, opt for words like "connect" or "join" for simpler, non-reciprocal connections.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The word "interlock" functions as a verb, describing the action of two or more things fitting together securely or relating in such a way that each depends on the other. As Ludwig shows, it can also function as a noun, referring to a device that prevents undesired actions.
Frequent in
News & Media
30%
Encyclopedias
30%
Science
20%
Less common in
Formal & Business
10%
Reference
5%
Social Media
5%
Ludwig's WRAP-UP
The term "interlock" is a versatile word used to describe secure connections and mutual dependencies. As confirmed by Ludwig, it's grammatically correct and frequently appears in diverse sources, particularly News & Media, Encyclopedias and Science. Whether it's puzzle pieces fitting together or safety mechanisms preventing accidents, "interlock" signifies a robust, integrated relationship. To avoid misuse, remember that "interlock" should describe reciprocal connections. Alternatives like "mesh together" or "join securely" offer nuanced options. In summary, mastering "interlock" enhances precision in both technical and general writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
mesh together
Focuses on the physical or abstract coming together of elements.
join securely
Emphasizes the secure aspect of the connection.
fit snugly
Highlights a tight and precise fit.
connect firmly
Stresses the strength of the connection.
engage completely
Focuses on the full engagement or interaction between elements.
fasten together
Emphasizes the act of securing two or more things.
unite closely
Highlights the near fusion of two or more elements.
become integrated
Emphasizes the action of becoming unified as a whole.
coordinate actions
Focuses on synchronizing activities, rather than physical joining.
correspond reciprocally
Highlights the mutual or reciprocal relationship of elements.
FAQs
How can I use "interlock" in a sentence?
You can use "interlock" to describe how two or more things fit together securely, like "The puzzle pieces interlock to form a complete picture" or "The safety mechanisms interlock to prevent accidents".
What words are similar to "interlock"?
Alternatives to "interlock" include "mesh together", "join securely", or "fit snugly", depending on the context.
Is it correct to use "interlock" to describe abstract relationships?
Yes, "interlock" can describe abstract relationships where elements are mutually dependent. For instance, "The success of both departments interlock".
What's the difference between "interlock" and "connect"?
"Connect" implies a general link, while "interlock" suggests a more secure and integrated relationship where elements mutually depend on each other. For example, "The electrical wires connect" versus "The gears interlock to drive the machine".
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested