Definition

A system or device that automatically controls the direction of a vehicle, such as an aircraft or a ship, without needing constant human input.

Example

The airplane flew smoothly on autopilot during the long flight.

Conversation

Did you know that planes can fly on autopilot?

Yeah, it's amazing how technology works these days.

I wonder how safe it really is to rely on autopilot for long flights.

I'm sure it's pretty safe, but I’d still prefer a human pilot.

Synonyms & Antonyms

Root Explanation

Autopilot is formed from "auto-" (from Greek "autos", meaning self) and "pilot" (from Old French "pilot", meaning one who steers or guides). The word describes a system that steers or guides a vehicle by itself, without human intervention.

Memory Tip

Think of 'self' ('auto-') guiding or steering something ('pilot') — that's why autopilot means a system that steers itself.

Visually Confused Words