noun
a strong current caused by the tide that pulls objects out to sea
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The swimmer got caught in a powerful riptide and had to be rescued by a lifeguard.
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Dude, be careful when you're swimming out there, there's a strong riptide today.
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I heard there's a crazy riptide at the beach, so let's stay closer to shore.
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The sudden news of layoffs created a riptide of panic throughout the company.