Spinner

Spinner is a term used in several domains to refer to objects or components built to rotate or imply rotation. The word covers devices, tools, and symbols that rely on circular motion.

Fidget spinner: A small hand-held toy consisting of a central bearing with two or more arms or lobes. The device is held with one finger and spun to produce rapid rotation. Variants use different materials and finishes. Fidget spinners were marketed as stress-relief and focus aids, and they became a widespread trend for a period before changing in popularity.

Fishing spinner: A type of lure used in angling that features a blade or blades mounted on a spinner frame. As the lure moves through water, the blade rotates or swivels, creating flash, vibration, and sometimes sound to attract fish. Spinner lures are commonly used in freshwater and are often sold as spinnerbait or spinner rigs with additional components.

Loading indicator: In computing and user interfaces, a spinner is a graphical element that signals ongoing processing. It typically appears as a rotating circle, arc, or other shape. Spinners indicate that a task is in progress and do not convey quantitative progress; they are used to manage user expectations during delays.

Aircraft spinner: In aviation, a spinner is the aerodynamic cone at the front of a propeller hub. It streamlines the nose of the propeller assembly, reducing drag and protecting the hub. Spinners may be fixed or removable for maintenance and are sometimes color-coded for visibility.

Other uses: The term can apply in crafts, textiles, or branding to indicate circular motion or a decorative spinning element. The common thread across meanings is rotational symmetry or the appearance of rotation.