The crossword solution for the term 'WHAT'S IN A ___? (LINE FROM JULIET)' is NAME, with four letters. This phrase is a line from William Shakespeare's play Romeo and Juliet, in which Juliet famously says 'What's in a NAME? That which we call a rose by any other NAME would smell as sweet.' This line is often used to express the idea that a NAME does not define a person or thing, and that what matters is the essence of the person or thing, not its NAME.