Nail shapes refer to the different styles in which fingernails can be filed or shaped. Common shapes include square, oval, almond, stiletto, and round. Each shape can complement different hand shapes and personal styles, offering a variety of aesthetic options. The square shape features straight edges and a flat tip, while the oval shape has rounded edges for a softer look. The almond shape resembles the nut, tapering to a point, and the stiletto shape is long and pointed, often associated with bold fashion statements. The round shape is a classic choice, providing a natural appearance.