In a manner such that the face, front, or surface which is normally directed forward for viewing is positioned downward.(adverb)
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Use "facedown" in a sentence
"Members of the three-person election committee keep return envelopes that bear a member's name facedown during the counting process, Wainwright said."
"When Lyons regained consciousness, he was lying facedown on the ground, choking, gasping for air, and spitting up blood and dirt."
"He looked as if he could fall asleep facedown in his patty melt."