Word of the Day: Doughnut or Donut

doughnut or donut (less common spelling)
dough-nut / dō-nŭt, dō-nət

noun
1. a fried cake rolled in sugar, usually round with a hole in the middle
Don’t look at the hole in the doughnut. Look at the whole doughnut.
Branch Rickey, 1881 – 1965

2. something that is shaped like a thick ring; a toroid
Polish doughnuts are low viscosity, optically thick, radiation pressure supported accretion disks cooled by advection.
“Accretion Disk” ‘Wikipedia’, https://en.wikipedia.org/wiki/Accretion_disk, 5-22-2020

3. a fast, tight complete circular turn made in a motorized vehicle or boat
A “doughnut” is the act of rotating the rear of the car around the front wheels continuously, thereby creating circular skid marks if done right, and causing lots of tire smoke.
“Doughnuts” ‘Modern Racer’, http://www.modernracer.com/tips/rwddoughnuts.html