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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.

With its exquisite controls—a knob to wind the clock, a key to wind the bell and a button to silence the alarm—it was a bewildering cross between jewelry and a grown-up appliance.

From The Wall Street Journal • Jun. 11, 2026

Koen Hoorelbeke, investment and options strategist at Saxo Bank, also noted that a deeper reading of the VIX, a key measure of market volatility, shows clear signs of near-term risks.

From Barron's • Jun. 11, 2026

Investors have grown concerned about the durability of the memory-cycle boom, but Morgan Stanley analyst Shawn Kim noted that dynamic random-access memory remains a key bottleneck to the artificial-intelligence build-out.

From MarketWatch • Jun. 11, 2026

El Niño's intensity is measured by how far sea surface temperatures rise above average in a key zone of the Pacific.

From BBC • Jun. 11, 2026

A puzzle that might just hold the key to finding my mom.

From "South of Somewhere" by Kalena Miller




Vocabulary lists containing key


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