familiarity (with something) | familiarity (to somebody) the state of knowing somebody/something well; the state of recognizing somebody/something. His familiarity with the language helped him enjoy his stay. When she saw the house, she had a feeling of familiarity. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.