A sprinkle is a light shower of something, often water. It’s also a verb that means to gently scatter something. A sprinkle of snow won’t cause school to close, but a sprinkle of fairy dust could transport you to a magical land.
When there’s a sprinkle of rain, you should bring an umbrella just in case it turns into a downpour. A sprinkler causes a sprinkle of water to fall on the flowerbeds, and if it’s really hot, it can be fun to play under. At the Memorial Day parade, the firefighters might sprinkle confetti over the crowd — and if you’re lucky, they’ll sprinkle candy, too. Speaking of candy, a sprinkle is also a tiny treat often sprinkled on your ice cream.