Definition

Referring to temperatures that are below zero degrees, often used in weather reports or discussions about cold conditions.

Example

The forecast predicts subzero temperatures this weekend, so make sure to dress warmly.

Conversation

Did you hear that the temperature might drop to subzero tonight?

No way! That's going to be freezing!

I know, right? I should probably bring my warm coat.

Definitely! You don't want to be out in subzero weather without it.

Synonyms & Antonyms

Root Explanation

Subzero → It is formed from "sub-" (meaning under or below) and "zero" (from the Italian "zero", meaning nothing or null). The word "subzero" refers to temperatures that are below zero degrees, indicating extreme cold.

Memory Tip

Think of 'sub-' meaning 'under' and 'zero' meaning 'nothing' — together they describe temperatures that are under nothing, or below freezing.

Visually Confused Words