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unknown
[uhn-nohn]
adjective
not known; not within the range of one's knowledge, experience, or understanding; strange; unfamiliar.
not discovered, explored, identified, or ascertained.
the unknown parts of Antarctica.
not widely known; not famous; obscure.
an unknown writer.
noun
a thing, influence, area, factor, or person that is unknown.
the many unknowns in modern medicine; The director cast an unknown in the leading role.
Mathematics., a symbol representing an unknown quantity: in algebra, analysis, etc., frequently represented by a letter from the last part of the alphabet, as x, y, or z.
unknown
/ ʌnˈnəʊn /
adjective
not known, understood, or recognized
not established, identified, or discovered
an unknown island
not famous; undistinguished
some unknown artist
a person or thing whose action, effect, etc, is unknown or unpredictable
noun
an unknown person, quantity, or thing
maths a variable, or the quantity it represents, the value of which is to be discovered by solving an equation; a variable in a conditional equation
3y = 4x + 5 is an equation in two unknowns
Other Word Forms
- unknownness noun
Word History and Origins
Example Sentences
He added that the cause of death was unknown but was not thought to be suspicious.
It is thought that at least 26 hostages are deceased, with the fate of two others unknown.
Lecornu, a Macron ally skilled in backroom negotiations but largely unknown to the broader French population, on Saturday visited a police station in the southern Paris suburb of L'Hay-les-Roses.
It’s unknown what the device will look like and how it will function—it won’t be a wearable device like a watch or a pin.
Since then, she has received no signs of life and his fate is unknown.
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