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in·​ter·​lock ˌin-tər-ˈläk How to pronounce interlock (audio)
interlocked; interlocking; interlocks

intransitive verb

: to become locked together or interconnected

transitive verb

: to lock together : unite
: to connect so that the motion or operation of any part is constrained by another


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in·​ter·​lock ˈin-tər-ˌläk How to pronounce interlock (audio)
: the quality, state, sense, or an instance of being interlocked
: an arrangement in which the operation of one part or mechanism automatically brings about or prevents the operation of another
a safety interlock
: a stretchable fabric made on a circular knitting machine and consisting of two ribbed fabrics joined by interlocking
: a garment made of interlock

Example Sentences

Verb She interlocked her fingers with his.
Recent Examples on the Web
In the longest-necked pterosaurs, the neck vertebrae were actually interlocking, making the neck quite stiff. Scientific American, 1 Feb. 2020 Ages 3+ Creatto $12 at Walmart The pieces of this DIY set are actually plastic tiles that interlock, kind of like a 3D puzzles, and building them can help improve fine motor skills as well as hand-eye coordination. Rachel Rothman,, 13 May 2023 The Dodger blue paint and the white interlocking LA on the archway above the entrance identify the owner, but the team will say nothing about the facility, about its interest in Uganda and what, exactly, goes on behind that concrete wall. Kevin Baxter, Los Angeles Times, 4 May 2023 All these interlocking identities – our race, socioeconomic status, gender, etc – matter to our experiences. Leah Asmelash, CNN, 19 Apr. 2023 There'd be a gathering at the stadium, everyone holding candles, singing the Ding Dong song, interlocking arms, smiling and rejoicing. Mike Freeman, USA TODAY, 13 Apr. 2023 Filoni’s feature depends on the machinery of the interlocking TV series and will factor in timelines of a fourth season of Mandalorian and a possible second season of Ahsoka. Borys Kit, The Hollywood Reporter, 12 Apr. 2023 For about a decade, W.C. Richardson (1953-2022) made square paintings of interlocking dark rectangles highlighted by light-colored halos and usually positioned on even paler backgrounds. Mark Jenkins, Washington Post, 7 Apr. 2023 Both are comprised of interlocking threads — webs — that evoke powerful, visceral reactions. Deborah Vankin, Los Angeles Times, 22 Mar. 2023
For more information about alcohol interlock programs in Europe, click here. Tanya Mohn, Forbes, 25 Jan. 2023 These findings can be shared with product development teams to create a deeper product interlock, guiding product roadmap toward what customers want from their product. Manjula Talreja, Forbes, 11 Jan. 2023 Fairfax County General District Court Judge Susan Earman dismissed the defense team’s motion and proceeded with Sangha’s trial, questioning the police officer involved and ultimately convicting Sangha on the count of driving without an ignition interlock. Washington Post, 9 Apr. 2021 He'll also be limited, for one year, to driving a car that's equipped with an ignition interlock device that would require him to provide a breath sample before the engine starts, prosecutors said. Diana Dasrath, NBC News, 23 Aug. 2022 Require judges to order the use of an ignition interlock device for all offenses involving driving while intoxicated. Molly Beck, Journal Sentinel, 13 Feb. 2023 As of July 2022, all new types of vehicles launched in the EU must have the capability to install an alcohol interlock. Tanya Mohn, Forbes, 25 Jan. 2023 Typically, drivers convicted of DWIs have an interlock device (an in-car breathalyzer) equipped in their vehicle. Dallas News, 4 Mar. 2022 This is another jigsaw-puzzle-style model with a dead-simple installation as pieces interlock together in seconds. Melanie Gibson, Men's Health, 18 Nov. 2022 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'interlock.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use


1632, in the meaning defined at intransitive sense


1874, in the meaning defined at sense 1

Time Traveler
The first known use of interlock was in 1632

Dictionary Entries Near interlock

Cite this Entry

“Interlock.” Dictionary, Merriam-Webster, Accessed 6 Jun. 2023.

Kids Definition


: to lock together : interlace firmly
a series of rings interlocking to form a chain

Legal Definition


intransitive verb
in·​ter·​lock ˌin-tər-ˈläk How to pronounce interlock (audio)
: to be or become mutually connected
also : to be consistent in regard to major elements
confessions that interlock

More from Merriam-Webster on interlock

Last Updated: - Updated example sentences
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