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English definition of “unless”

unless

conjunction uk   /ənˈles/ us  
B1 except if: You can't get a job unless you've got experience (= you can only get a job if you have experience). Unless you call me to say you're not coming, I'll see you at the theatre (= I will see you there if you do not call to say you are not coming).
(Definition of unless from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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