key date

noun
plural key dates

Definition of key date

: a coin that is the rarest or otherwise most difficult of its series to obtain The 1909-S wheat penny is considered a key date by collectors.

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First Known Use of key date

1976, in the meaning defined above

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Time Traveler for key date

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The first known use of key date was in 1976

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Dictionary Entries Near key date

key-cold

key date

key deer

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Cite this Entry

“Key date.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/key%20date. Accessed 5 Dec. 2021.

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