The plural of carwash; multiple car-washing businesses or facilities, or several instances of washing a car.
Regular English plural formation by adding '-es' to 'carwash,' following standard rules for words ending in sibilant sounds.
The economics of car washes is surprisingly interesting—they make money both from volume (lots of cheap washes) and from premium services (wax, interior cleaning), creating a fascinating small-business model that's thrived for a century.
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