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Word: unknown (lookup usage) (lookup stats)


Meaning:

Adjective:

  • Not known; unidentified; not well known.

Source: Wiktionary | Src Info »

Noun:

  • algebra A variable (usually ''x'', ''y'' or ''z'') whose value is to be found.
  • Any fact or place about which nothing is known (as in the phrase "into the unknown").

Source: Wiktionary | Src Info »