Meaning of “unique” in the English Dictionary

"unique" in British English

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uniqueadjective

uk /juːˈniːk/ us /juːˈniːk/

B2 being the only existing one of its type or, more generally, unusual, or special in some way:

Each person's genetic code is unique except in the case of identical twins.
I'd recognize your handwriting anywhere - it's unique.
Do not miss this unique opportunity to buy all six pans at half the recommended price.
As many as 100 species of fish, some unique to (= only found in) these waters, may have been affected by the pollution.

More examples

  • The exhibition is a unique opportunity to see her later work.
  • A unique feature of these rock shelters was that they were dry.
  • Fingerprints are unique to every individual.
  • This is a unique opportunity to hear Mr Maitland speak in person.
  • This problem is not unique to learners of English.
uniquely
adverb uk /juːˈniːk.li/ us /juːˈniːk.li/

He's uniquely qualified to run this agency.
uniqueness
noun [ U ] uk /juːˈniːk.nəs/ us /juːˈniːk.nəs/

(Definition of “unique” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"unique" in American English

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uniqueadjective

us /jʊˈnik/

being the only existing one of its type or, more generally, unusual or special in some way:

Each person’s DNA is unique.
uniquely
adverb us /jʊˈni·kli/

He's uniquely qualified to run this agency.
uniqueness
noun [ U ] /jʊˈnik·nəs/

(Definition of “unique” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"unique" in Business English

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uniqueadjective

uk /juːˈniːk/ us

something that is unique is unusual or the only one of its type:

Fast-growing companies are in a unique position to attract the best candidates.
Over the past 15 years, she has made a unique contribution to the country's business environment.
a unique opportunity/set of circumstances

a unique problem, challenge, etc. is difficult to deal with because it has never happened before:

The recent financial crisis has posed some unique challenges for governments.

if something is unique to a place or situation, it only exists in that place or situation:

Many of our problems are unique to our profession.

(Definition of “unique” from the Cambridge Business English Dictionary © Cambridge University Press)