From Longman Dictionary of Contemporary Englishbe familiar with somethingbe familiar with somethingUSED TO/ACCUSTOMED TOto have a good knowledge or understanding of something Are you familiar with this type of machine? I’m not familiar with her poetry. → familiar
Examples from the Corpus
be familiar with something• Are you familiar with his books?• And you took too much for granted by assuming your audience was familiar with sponges.• Here, however, all similarity between the piece Lucien was familiar with and what he saw being performed before him ended.• Most permit-seekers are middle-aged men who already are familiar with guns, Chelius said.• Nevertheless it is a mistake to think that the only literary modes which exist are those one period is familiar with.• Now consider that imaginary train of mine you are familiar with, one light-second long.• Surely they must be familiar with his writing?• Taku Shanskan is familiar with my spirit and when I die I will go with him.• That was the nature of the oppression and the sense of being dominated which we all were familiar with. 