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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.

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

Kennedy said physical decarbonization remains the key focus, and companies should do everything in their power to lower emissions.

From The Wall Street Journal • Jun. 11, 2026

With the key deposit rate at 2%, analysts anticipate further ECB rate hikes, potentially in July, to combat inflation.

From Barron's • Jun. 10, 2026

Co-corresponding author Professor Joo-Yong Lee stated, "We identified a mechanism in which key DNA repair proteins are actively degraded inside the cell. This provides a new way to regulate homologous recombination beyond genetic mutations."

From Science Daily • Jun. 10, 2026

“Grab the key card when you have a chance,” I said.

From "Glitch" by Laura Martin




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