Ballpen

 BALLPEN

pen 1  (pn) n. 1. An instrument for writing or drawing with ink or similar fluid, especially: a. A ballpoint pen. b. A fountain pen. c. A pen point. d. A penholder and its pen point. e. A quill. 2. An instrument for writing regarded as a means of expression: "Tyranny has no enemy so formidable as the pen" (William Cobbett). 3. A writer or an author: a hired pen. 4. A style of writing: wrote plays with a witty pen. 5. pens Pinions. 6. The chitinous internal shell of a squid. tr.v. penned, pen·ning, pens To write or compose with or as if with a pen.