IPA: /ˈrɪpˌtaɪd/
KK: /ˈrɪpˌtaɪd/
A strong current of water that flows away from the shore, often occurring in the ocean and can be dangerous for swimmers.
The lifeguard warned the beachgoers about the riptide that could pull them out to sea.
Riptide is formed from "rip" (from Old English "rippa", meaning to tear or break) and "tide" (from Old English "tid", meaning time or period). The word describes a strong current that tears or breaks away from the shore during a specific period of tidal movement.
Imagine a strong current that 'tears' ('rip') away during a certain 'time' ('tide') — that's what a riptide is.