wheel of fortune

Short definition from Wiktionary

Noun

1. 1
   A gambling or lottery device consisting of a wheel which is spun horizontally to determine, by its stopping position, whether a gambler will receive one of the prizes marked around its circumference.

Proper noun

1. 1
   Alternative letter-case form of Wheel of Fortune (“the mythological wheel turned randomly by Fortuna, the Roman goddess of fate, fortune, and luck, to determine people's fortunes which were thus unpredictable”).
2. 2
   The mythological wheel turned randomly by Fortuna, the Roman goddess of fate, fortune, and luck, to determine people's fortunes which were thus unpredictable.
3. 3
   Synonym of Big Six wheel (“a game of chance consisting of a vertically mounted wheel divided into equal marked sectors; the winning sector is the one indicated by a pointer when the wheel stops turning”).
4. 4
   A tarot card with an image of Fortuna's wheel (sense 1), generally the tenth of 22 trumps of the major arcana in most tarot decks.
5. 5
   Alternative letter-case form of Wheel of Fortune (“the mythological wheel turned randomly by Fortuna, the Roman goddess of fate, fortune, and luck, to determine people's fortunes which were thus unpredictable”).