What term is best defined as being well known or easily recognized?

The term that best defines being well known or easily recognized is "familiar." When something is familiar, it signifies that it is known or recognized by someone, often due to previous exposure or experience. For instance, if a person is familiar with a particular neighborhood, it means they have visited it before and can easily navigate or identify features within it.

In contrast, "obscure" refers to something that is not well known or not easily understood, which directly opposes the idea of being recognized. "Unfamiliar" similarly indicates a lack of recognition, as it describes something that is not well known to someone. "New" typically applies to something that has recently been introduced or created and does not inherently imply familiarity or recognition. Hence, "familiar" accurately captures the essence of being well known or easily recognized.