Left in a public location when not in use.(adjective)
Simple past tense and past participle of park.(verb)
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Use "parked" in a sentence
"On her way home, some teenagers in parked cars that reeked of hash used cuss words, followed her, tried to grab her, encircled her with their vehicles, and the poor woman and her niece felt trapped."
"Nothing between us and the sand but a strip of road, the sidewalk, and a few folks in parked cars, admiring the sea."
"For over a decade, the killer murdered and mutilated fourteen people; seven couples making out in parked cars."