Choose the perfect synonym or antonym for the word A small piece of metal used to open or close a lock
Key
/ki/Synonyms:
Antonyms:
This word has no antonymsExamples:
Where is my car key?She is the key to your success.
Etymology:
The word key originates from the Old English cæg, related to the Old Norse kuggi (locking piece), stemming from Proto-Germanic *kaigô.
Usage Statistics:
85 mentions per 1 million words 
Hint: Frequency according to COCA
Often
Hint: Frequency according to COCA
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