A Harley-Davidson motorcycle.
"He decided to take his new Harley through the winding canyon roads on a sunny Saturday morning."
In plain English: A harley is a large motorcycle with two wheels and an engine that makes loud noise when it runs fast.
"He parked his red harley in front of the garage."
A village in Shropshire, England.
"The local history museum in Harley recently opened a new exhibit about the village's medieval origins."
The name Harley likely comes from the Old English words for "hare" and "clearing," describing a place where hares were once common. It entered modern usage as a surname derived from this specific type of location before becoming associated with motorcycles.