Ballpen and Biro

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

Biro and ballpen are semantically related in ballpoint pen topic. In some cases you can use "Biro" instead a noun "Ballpen", when it comes to topics like ballpoint.

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

Ballpen and biro are semantically related in ballpoint pen topic. You can use "Ballpen" instead a noun "Biro", if it concerns topics such as ballpoint.