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English definition of “terra incognita”

terra incognita

noun [U]     /ˌter.ə.ɪŋˈkɒɡ.nɪ.tə/ US  /-ɪnˈkɑːɡ.niː.t̬ə/ often humorous
a place, subject, or situation that you are not familiar with: Dealing with children is terra incognita to me.Unknown and unfamiliar
(Definition of terra incognita noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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