A strong flow of water away from the shore of the ocean.(noun)
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Use "riptide" in a sentence
"A riptide occurs when water at high tide gets pooled behind reefs or sand bars so when the sea goes out again, the trapped water has to find a channel through which to escape the pool."
"Tallahassee man recalls riptide experience from Memorial Day 2008"
"National Guard members saying good-bye to loved ones ahead of Iraq deployment Tallahassee man recalls riptide experience from Memorial Day 2008"