SINCE 1828
the unknown
nounDefinition of the unknown
: a place, situation, or thing that is not known about or understood
explorers venturing off into the unknown
: a situation that one is unfamiliar with
A fear of the unknown kept her from changing jobs.
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Time Traveler Quiz: Which Word Came First?
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Merriam-Webster unabridged
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Word Games
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Time Traveler Quiz: Which Word Came First?
Which word entered the English language first?
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Slippery Words Quiz—Changing with the Times
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