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Definition of unknown noun from the Oxford Advanced Learner's Dictionary

unknown

noun
 
/ˌʌnˈnəʊn/
 
/ˌʌnˈnəʊn/
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  1. the unknown
    [singular] places or things that are not known about
    • a journey into the unknown
    • a fear of the unknown
    Extra Examples
    • This action represents a leap into the unknown.
    • What the weather will be like on the day is, as always, the great unknown.
    Oxford Collocations Dictionaryadjective
    • big
    • great
    verb + unknown
    • explore
    • face
    • step into
    phrases
    • a journey into the unknown
    • a leap into the unknown
    • a voyage into the unknown
    See full entry
  2. [countable] a person who is not well known
    • A young unknown played the leading role.
    Extra Examples
    • a cast of virtual unknowns
    • The championship was won by a complete unknown.
    Oxford Collocations Dictionaryadjective
    • complete
    • relative
    • virtual
    See full entry
  3. [countable] a fact or an influence that is not known
    • There are so many unknowns in the proposal.
  4. [countable] (mathematics) a quantity that does not have a known value
    • X and Y in the equation are both unknowns.
See unknown in the Oxford Advanced American DictionarySee unknown in the Oxford Learner's Dictionary of Academic English
pity
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