DPI, or dots per inch, is a term often used in the world of digital image processing and printing. However, there are several synonyms that are commonly used in this field. These include PPI (pixels per inch), LPI (lines per inch), SPI (samples per inch), and CPI (characters per inch). Each of these terms refers to different aspects of the digital image processing process and is used in different contexts. For instance, PPI is often used to describe the resolution of digital images, while LPI is used to describe the resolution of printed images. By understanding these synonyms, you can better navigate the world of digital image processing and printing.