Definition

A very large number that is equal to 1 followed by 63 zeros.

Example

In the mathematical world, a vigintillion is an enormous figure that is rarely used in everyday calculations.

Conversation

Did you know that a vigintillion is a real number?

Really? I had no idea it even existed!

Yeah, it's equal to 10 to the power of 120.

Wow, that's huge! I can't even imagine that many.

Synonyms & Antonyms

Root Explanation

Vigintillion is formed from "viginti" (meaning twenty) and the suffix "-illion" (used in large number names). The word refers to a numerical value that is 10 to the power of 63 in the American system, which is a one followed by 63 zeros, indicating a quantity that is twenty groups of three zeros beyond a million.

Memory Tip

Think of 'viginti' meaning twenty, and remember that 'vigintillion' represents a number that is twenty groups of three zeros after a million.

Visually Confused Words