# biro

> English word · Noun · IPA /ˈbaɪ.ɹəʊ/ · frequency rank #64,932

## Definitions
1. A Biro brand ballpoint pen.
2. Any ballpoint pen.
3. Ink from a ballpoint pen.

## Etymology
Genericized trademark of BIRO, named after László Bíró, the inventor of the first commercially succesful ballpoint pen.

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