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unkempt
unkennel
unkind
unkindly
unkink
unknit
unknowable
unknowing
unknown
unknown quantity
Unknown Soldier
unlabeled
unlabored
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unknown

un·known [ un nṓn ]


adjective 
Definition:
 
1. not known: not forming part of somebody's knowledge or of knowledge in general
an unknown assailant

2. not identified: undetermined or undiscovered
Unknown to her family, she left town.

3. not widely known: not known to, or recognized by, many people
An unknown actress was starring in the play.



noun  (plural un·knowns)
Definition:
 
1. somebody or something not known: somebody or something that is not part of a person's knowledge or of knowledge in general

2. somebody or something not widely known: somebody or something that is not known or recognized by many people

3. mathematics variable to be determined: a variable in an equation whose values are solutions of the equation

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