A font is a specific style, weight, and size of typeface used for text in digital and print media. Fonts define the appearance of characters, including letters, numbers, and symbols, by specifying their shape and style. Each font belongs to a typeface family (such as Arial, Times New Roman, or Helvetica), which may include variations like bold, italic, and regular. Fonts are essential for visual communication, as they impact readability, aesthetic appeal, and convey different tones or moods. They are widely used in documents, websites, applications, and other media to create a consistent and accessible visual experience.