A BIRO brand ballpoint pen. / (by extension, UK, Australia, New Zealand) Any ballpoint pen. / (uncountable, by extension) Ink from a ballpoint pen.

plural of biro

A surname.

A surname.

plural of Biro

A structure made of two adjoined rotundas.

plural of birotunda

A city, the administrative center of the Jewish Autonomous Oblast, Russia.

Two-wheeled.

(rare) Having two beaks (or beak-like structures)