Definition of unique adjective from the Oxford Advanced Learner's Dictionary

        

    unique

     adjective
    adjective
    BrE BrE//juˈniːk//
     
    ; NAmE NAmE//juˈniːk//
     
     
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  1. 1  being the only one of its kind Everyone's fingerprints are unique. You can use absolutely, totally or almost with unique in this meaning.
  2. 2  very special or unusual a unique talent The preview offers a unique opportunity to see the show without the crowds. The deal will put the company in a unique position to export goods to Eastern Europe. You can use more, very, etc. with unique in this meaning.
  3. 3  unique (to somebody/something) belonging to or connected with one particular person, place or thing an atmosphere that is unique to New York The koala is unique to Australia.
  4. Word Origin early 17th cent.: from French, from Latin unicus, from unus ‘one’.Extra examples Its magnificent proportions make this palace unique among the buildings of the world. The city has an atmosphere which is quite unique. The magnificent light makes this place unique. This monkey is unique to the island. Each archaeological site is unique and, once destroyed, cannot be replaced. Each item has a unique 6-digit code. Every human being has a unique fingerprint that does not change over time. Her lawyer said the case was unique in French law. Her many unique qualities include discretion and loyalty. I have had a unique opportunity to observe the problems faced by the police in this city. Saturn’s largest moon is unique in having an atmosphere made mostly of nitrogen. Surely nobody could have more unique or peaceful surroundings in which to work. Teaching styles reflect the unique circumstances of each school and classroom. The club has prospered under his unique style of leadership. The museum is of unique historical importance. The pattern of stripes is unique to each individual animal. The problem is not unique to this country. There’s nothing unique about the case. We have the almost unique situation of an artist banning his own work.
See the Oxford Advanced American Dictionary entry: unique