Skip to the word

Added 9 October 2026

biro

/ˈbaɪ.ɹəʊ/ noun

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about biro at Wordnik → Where our words come from →

A pen that has a small metal ball as the point of transfer of ink to paper.

Origin

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

From Wiktionary, via Kaikki.org (CC BY-SA)

Back to today's word