# robi-

> English word · Prefix

## Definitions
1. The IEC prefix meaning 2⁹⁰ = 1,024⁹ = 1,237,940,039,285,380,274,899,124,224. Compare ronna-, meaning 10²⁷ = 1,000⁹ = 1,000,000,000,000,000,000,000,000,000, an octillion.

## Etymology
Blend of ronna- + binary.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/robi