Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZhave a lock on
idiom
: to be assured of (something)
He appears to have a lock on the nomination for governor.
Love words? Need even more definitions?
Merriam-Webster unabridged
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- The business’s new computer system proved not to be a panacea.


Can you make 12 words with 7 letters?
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