Simple past tense and past participle of recline.(verb)
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Use "reclined" in a sentence
"For viewing, all you'll need are warmth, a comfortable way to sit back/lay down (reclined is best - less neck strain), and lots of sky."
"She reclined ( "reclined" is perfectly accurate) on the red-leather couch, among the pillows, and smoked two cigarettes, relapsing into "No?" 's for conversation."
"Sitting in a lawn chair, reclined under a huge tent, the summer breeze gently sweeping across your face, and reaching for a refreshing summertime drink, maybe a mojito."