Styli are small and pointed instruments that are commonly used in drawing, writing, or even in touchscreen devices. If you're getting tired of using the word styli over and over again, you can try using its synonyms to add a little variety in your writing. Here are some of the words that you can use: pen, quill, pencil, marker, brush, stylus, ballpoint, fountain pen, calligraphy pen, and gel pen. Some of these words have a specific function or use, while others are more general and can refer to any writing instrument. Choosing the right word can add depth to your writing and make it more engaging for your readers.