1. To agitate the air.
2. To make fiercer; as of emotions.
3. To strike out a batter, in baseball; SYN. strike out.

ETYM AS. fann, from Latin vannus fan, van for winnowing grain; cf. French van. Related to Van a winnowing machine, Winnow.
1. A device for creating a current of air by movement of a surface or surfaces.
2. An ardent follower; SYN. buff, devotee, lover, afficionado.
Fashion accessory, opening from the folded state into a semicircular shape which is held in the hand and gently moved backward and forward to create a circulation of air, cooling the holder of the fan.
Fans were introduced into Europe through trade routes from the East in the late 15th and early 16th centuries. Made of materials such as sandalwood, ivory, mother-of-pearl, tortoiseshell, feathers, silk, paper, and lace, and sometimes decorated with hand-painted designs, fans reached the height of popularity in the 18th century.

A device for creating a current of air by movement of a surface or surfaces.

The cooling mechanism built into computer cabinets, laser printers, and other such devices to prevent malfunction due to heat buildup. Fans are the main source of the continuous humming associated with computers and other hardware.

To flip through a stack of printer paper to ensure that the pages are loose and will not stick together or jam the printer.