Biro vs. Ballpoint — What's the Difference?

A BIRO brand ballpoint pen.

A pen having as its writing point a small ball bearing that transfers ink stored in a cartridge onto a writing surface.

Any ballpoint pen.

(colloquial) A ballpoint pen.

Ink from a ballpoint pen.

(sewing) A kind of needle with a rounded tip.

A pen with small metal ball as point of transfer of ink to paper; same as ballpoint pen.

A pen which has a small metal ball as point of transfer of ink to paper, at the tip of a cylandrical and non-refillable reservoir of ink; - short for ballpoint pen.

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

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