I practiced spinning pizza on my index finger all day yesterday.
The door knob turning noise made the baby wake up.
If I spin a one dollar coin fast enough, maybe it will turn into a one hundred dollar bill.
You've probably seen the word 回る, which means "to revolve." This word is similar, except for you're doing the turning/rotating action on something else. You can simply say to turn or to rotate when answering this question, but be sure to think of yourself actually turning/rotating something. Remember this by using the す on the end. You've taken your friend Sue and put her on a stick. You're rotating her over a fire on a spit because you're a sick cannibal.
The reading is the same as the word 回る (まわ). So long as you know that level 5 word, you'll be able to read this one as well. Use both of these words together to remember their readings.