Stilus, also known as a stylus, refers to a small pointed instrument used for writing or drawing. There are several other words that can be used interchangeably with this term. Such synonyms include pen, quill, ink pen, ballpoint pen, and felt-tip pen. These are all writing instruments that can be used to make marks on paper or other surfaces. Another synonym for stilus is writing implement, which refers to any tool used for writing, such as pencils, markers, and chalk. Whatever the synonym used, it is important to have the right writing tools to accurately and effectively communicate ideas.