(Philippine English) A ball point pen. Any kind of pen is called ballpen not unless one has to be specific.

A quill can even be called a ballpen. Any kind of writing materials that uses ink are called and referred as ballpen out of convenience.
ballpen ball pen Ball pen (ballpen)

May I borrow your ballpen?

Do you have an extra ballpen?
by Mr. Yoso June 28, 2012
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