Definition

Relating to or based on the number twenty.

Example

The vigesimal system is used in some cultures for counting and mathematics.

Conversation

Did you know that some cultures use a vigesimal counting system?

Really? I had no idea there were different ways to count.

Yeah, it's based on the number 20, which is pretty interesting.

That is cool! I wonder how it affects their math and measurements.

Synonyms & Antonyms

Root Explanation

Vigesimal → It is formed from "vigesimus" (meaning twentieth) and the suffix "-al" (meaning pertaining to). The word "vigesimal" refers to something that is related to the number twenty or a base-20 counting system.

Memory Tip

Think of the Latin word for twenty, 'vigesimus', to remember that 'vigesimal' relates to the number twenty.

Visually Confused Words