Longman Dictionary of Contemporary English
Wiktionary
n. A place on the interstate where one can stop to use the restroom, rest or do other things.
WordNet
Wikipedia
A rest area, travel plaza, rest stop, or service area is a public facility, located next to a large thoroughfare such as a highway, expressway, or freeway at which drivers and passengers can rest, eat, or refuel without exiting on to secondary roads. Other names include motorway service area, service station, rest and service area (RSA), resto, service plaza, and service centre. Facilities may include park-like areas, fuel stations, restrooms, and restaurants. A rest area or rest stop with limited or no public facility is a parking area or scenic area. Along some highways and roads are rest stops known as a wayside parks, roadside parks, or picnic areas. Rest areas are common in the United States, Canada, Australia, and parts of Europe, Africa, and Asia. The most basic rest areas have no facilities: they consist solely of an exit from the highway that leads to a roadway with paved shoulders, where drivers can rest, look at their maps, or use cell phones.
Usage examples of "rest area".
He grabbed it and pushed his way through the crowd into a rest area.
He was relieved to finally install himself in a booth in the rest area and order more coffee.
Jay said, laughing as he swung the LTD off the road and into the parking lot of the rest area.
Bisected by the access road, the rest area was a half circle of forested land, packed with an untamed bramble of wild trees and thorny bushes.
There, just after they'd passed a rest area, the twins announced they needed a bathroom.