Definition

An underwater current that flows away from the shore, often caused by waves breaking on the beach.

Example

The swimmer struggled against the strong undertow while trying to reach the shore.

Conversation

Did you feel that undertow when we were at the beach yesterday?

Yeah, it was pretty strong! I almost lost my balance.

It's surprising how powerful an undertow can be, isn't it?

Absolutely! It definitely reminded me to be careful while swimming.

Synonyms & Antonyms

Root Explanation

Undertow is formed from "under-" (meaning beneath or below) and "tow" (from Old English "tōwian", meaning to pull or drag). The word describes a current that pulls objects beneath the surface of the water, hence a current that drags downwards.

Memory Tip

Think of something being 'pulled down' ('tow') from 'beneath' ('under-') — that's what an undertow does.

Visually Confused Words