Definition

A person who explores or works underwater, especially in the ocean, often using special equipment.

Example

The oceanaut conducted research on marine life during the deep-sea expedition.

Conversation

Have you ever thought about becoming an oceanaut?

That sounds fascinating! What do they actually do?

They explore the deep sea and study marine life.

Wow, that would be an incredible experience!

Synonyms & Antonyms

Root Explanation

**Oceanaut** → It is formed from "ocean" (from Latin *oceanus*, meaning the great sea) and "-naut" (from Greek *nautes*, meaning sailor). The word "oceanaut" refers to a sailor or explorer of the ocean.

Memory Tip

Think of an 'ocean' as the vast sea and '-naut' as a sailor — an oceanaut is someone who explores the ocean.

Visually Confused Words