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Definitions

key

[kee] / ki /


NOUN
item that unlocks
Synonyms
Antonyms




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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He traveled in a van with Abdel-Rahman and Emad Salem, the government informant who later became a key witness in the federal case against Abdel-Rahman.

From Slate Jul. 14, 2026

As heavier dark matter particles accumulate in key regions, dark matter substructures become more effective at magnifying the light from distant background galaxies.

From Science Daily Jul. 14, 2026

The latest cost-cutting measures come on top of the 50,000 job cuts already negotiated with labor representatives for its namesake brand as well as key subsidiaries including Audi and Porsche.

From The Wall Street Journal Jul. 13, 2026

The paper says the change came after police discovered "items of political ideology" in their key suspect's home.

From BBC Jul. 13, 2026

I patted the ground under a large rock beside the door until I found the key.

From "The Red Car to Hollywood" by Jennie Liu

The company holds the keys to outer space for many companies and for the U.S. government, dominating the rocket-launch industry with few rivals capable of challenging it.

From MarketWatch Jun. 18, 2026

"Inadequate basic safeguards, including poor management of authentication signing keys and lax access controls" caused the personal data of around 37.5 million users to be exposed, the commission said in a statement.

From Barron's Jun. 11, 2026

The commission found that a lack of safeguards, including poor management of authentication signing keys and access controls, had resulted in the personal data of around 37.5 million users being exposed.

From BBC Jun. 11, 2026

For the last few years, Zegna has held the keys to the palaces of two of the biggest names in fashion: Tom Ford and Thom Browne.

From Los Angeles Times Jun. 9, 2026

“I left her exactly where I was supposed to be. Now, give me the keys, Danny.”

From "The Way to Rio Luna" by Zoraida Cordova

The Braves broke the 1-1 tie with three runs in the seventh inning, keyed by a two-run single from James Clark.

From Los Angeles Times Apr. 3, 2026

Granada Hills 4, El Camino Real 3: A two-run single by Nicholas Penaranda in the seventh inning keyed a three-run inning for the Highlanders in their West Valley League upset.

From Los Angeles Times Mar. 26, 2026

The company appeared to use a mix of derivative contracts, including options, that were keyed off oil prices.

From Barron's Mar. 24, 2026

That relentless defense has keyed consecutive home playoff victories.

From The Wall Street Journal Jan. 19, 2026

That was how Naomi’s brain, still keyed to Spanish, stored the words her mother sent her with when the second disaster came just after Naomi’s seventh birthday.

From "Out of Darkness" by Ashley Hope Pérez

Blindfolded, I felt Theatre Obscura was mostly playing off our fears rather than giving in to them, largely keying in on our anticipation that something may happen to us when stripped of sight.

From Los Angeles Times Mar. 26, 2026

“When the market is keying off fundamentals, around earnings season of these companies, these stocks rally,” Slimmon said.

From The Wall Street Journal Dec. 18, 2025

One of the alleged keying error hotspots is Syston Town Square car park in Leicestershire, where more than 100 people have been issued with PCNs.

From BBC Mar. 1, 2025

“It was the same mindset we always have. It was less about keying on their weaknesses, more about not making errors on our side. We were up for the challenge.”

From Los Angeles Times Nov. 10, 2024

“IT’S A NIGHTMARE,” Alex groaned, keying in Travel Agents in the Internet search engine.

From "Nim’s Island" by Wendy Orr




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