-illion

Table of contents

1 English 1.1 Etymology 1.2 Suffix 1.2.1 Usage note

English

Etymology

From million.

Suffix

-illion

1. Combined with Latin prefixes for names of integers in order to form names of powers of a million from 1,000,000² upwards.

   billion

   trillion

Usage note

• The word formed by combining the Latin prefix for the name of an integer n (n > 1) with this suffix may mean 1,000,000ⁿ or 1000^{n + 1}, depending on location and context. Hence billion can mean "million million" or "thousand million". See the usage notes at Wiktionary's appendix on numbers and billion for more information.