Added 9 October 2026 ballpoint noun Categories: ThingsRare Words noun ! Definition from WordNet 3.1, Princeton University. More about ballpoint 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 From ball + point. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: biroballpenpenpenpointfelt-tipbrush-pen Back to today's word