Definition

A container or space where something, often a vehicle part, becomes excessively hot due to friction or heat buildup.

Example

The mechanic checked the hotbox to see if it needed lubrication after the long trip.

Conversation

Did you hear about the train that had a hotbox yesterday?

Yeah, I saw that on the news; they said it caused a delay.

I wonder how they even notice a hotbox in the first place.

I guess the crew has to be really attentive to those things.

Synonyms & Antonyms

Root Explanation

Hotbox → The word is formed from "hot" (from Old English "hat", meaning having a high temperature) and "box" (from Old English "box", meaning a container or enclosure). The term "hotbox" refers to a container that is heated or used to keep something warm.

Memory Tip

Think of something that is 'high in temperature' ('hot') and is contained within a 'box' — that's what a hotbox is.

Visually Confused Words