A gathering or event at which people sleep outdoors or camp.(noun)
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Use "campout" in a sentence
"James, on the other hand, had been oblivious to the tension in the room, assuming that the campout was a given."
"The campout was the part that he was most looking forward to, he said."
"They are following a proven protocol known as the campout to spend the night in the Quest airlock to lessen the preparatory time before beginning the spacewalk scheduled for 12: 45 p.m."