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English definition of “familiarity”

familiarity

noun [U]  /fə·mɪlˈjær·ɪ·t̬i, -ˌmɪl·iˈær-/ us  
a good knowledge of something, or the fact that you know it so well: Harry’s familiarity with the city makes him a good tour guide.
(Definition of familiarity from the Cambridge Academic Content Dictionary © Cambridge University Press)
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