A type of pen is a writing instrument used to apply ink to a surface, usually paper. The four solutions for the term TYPE OF PEN are STY (3 letters), BALLPOINT (9 letters), STOCKADE (8 letters), and FELTTIP (7 letters). A STY pen is a traditional dip pen with a metal nib that is dipped into an inkwell. A BALLPOINT pen has a small rotating ball at its tip that transfers ink from a cartridge onto the paper. A STOCKADE pen is a fountain pen with a reservoir of ink that is fed to the nib through a feeder. Finally, a FELTTIP pen has a porous tip made of felt or other material that absorbs ink from a cartridge.