Definition

Relating to the concept of extension, which refers to the physical space that an object occupies or the range of things that a term can refer to.

Example

In mathematics, extensional properties are important for understanding the relationships between different sets.

Conversation

I’ve been reading about extensional theories in philosophy lately.

Oh really? What do they focus on?

They’re concerned with how things relate to objective reality.

That sounds interesting! I’d love to learn more about it.

Synonyms & Antonyms

Root Explanation

Extensional → It is formed from "ex-" (meaning out) and "tensio" (from Latin, meaning to stretch). The word "extensional" refers to something that stretches out or extends beyond a certain point.

Memory Tip

Think of something that 'stretches out' ('tensio') from the 'outside' ('ex-') — that's why extensional relates to extending.

Visually Confused Words