Disk/dɪsk/ Definition 1 of 5Pro Tip 1/3Physical Shape Refers to items resembling a flat, circular plate, often used casually. She decorated the room with colorful paper disks. Pro Tip 2/3Sporting Goods Used in sports like discus or ultimate frisbee to describe the object thrown. He excelled at throwing the disk, breaking his previous record. Pro Tip 3/3Not Always Digital Not to be confused with digital storage; can be any round flat object. The potter shaped the clay into a perfect disk.