While you might've identified your face shape as more narrow or oblong, you may be wondering what exactly this means. Essentially, oblong faces, sometimes referred to as oval-shaped, are longer than they are wide, lending themselves to narrower cheekbones, chins, and foreheads.
For reference, Sarah Jessica Parker, Liv Tyler, Kelley Rowland, and Leona Lewis are all examples of celebrities with oblong faces and narrower features. Not everyone with an oblong or oval face shape will necessarily have narrow features, as Blake Lively and Sandra Oh have oval-shaped faces without particularly narrow cheekbones and chins.
As for the significance of face shape, board-certified plastic surgeon David Shafer, MD, FACS, tells Real Simple that "knowing and understanding your face shape can be important for a number of reasons—[like] when choosing a hairstyle, picking sunglasses, grooming your eyebrows, or applying makeup...It also allows you to play with dimension and know which parts of your face you want to emphasize or minimize."