Nib/nɪb/ Definition 1 of 2Pro Tip 1/3Writing Instrument Nib is specifically used with pens that have a replaceable writing point. My calligraphy set came with several different nibs. Pro Tip 2/3Maintenance Pen nibs may need regular cleaning to keep the ink flowing smoothly. After each use, I clean the nib to prevent clogging. Pro Tip 3/3Quality Indicator The nib's material and shape can affect the pen's writing quality and comfort. This gold nib glides across the paper effortlessly.