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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.

The alleged perpetrator had improper access to Coupang users’ personal information such as names, phone numbers and even key codes for entering residential buildings.

From The Wall Street Journal • Jun. 11, 2026

The commitment to youth appears to be a key factor in Aguirre’s approach to building the roster.

From Los Angeles Times • Jun. 11, 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

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

“Be ready to get the key after Llewelyn goes through,” Sinchi said.

From "The Way to Rio Luna" by Zoraida Cordova




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