A font is a graphical representation of text that can have different sizes, colors, or designs. It is a set of printable or displayable typography or text characters in a specific style and size. Fonts are used in both print and digital text, and they can set or match the "tone" of the text based on the content. A font is designed and created using a font editor, and it is implemented as a digital data file containing a set of graphically related glyphs.

In the terminology of movable metal type, a font is a set of pieces of movable type in a specific typeface, size, width, weight, slope, etc.. A typeface refers to the collection of related fonts across styles and sizes (for example, all the varieties of Gill Sans). While some users refer to fonts and typefaces interchangeably, its more accurate to think of a typeface as a group of cohesive letterforms. A font is the way the typeface is presented, taking into consideration the size and style. A group of fonts including bold and italic variations is known as a font family.

There are different types of fonts, including:

• Serif fonts: These fonts have small lines or flourishes at the ends of the strokes that make up the letters. Examples of serif font styles include Times New Roman, Georgia, and Garamond.

• Sans-serif fonts: These fonts do not have the small lines or flourishes at the ends of the strokes that make up the letters. Examples of sans-serif font styles include Arial, Verdana, and Helvetica.

• Script fonts: These fonts mimic the appearance of handwritten text. They are often used for invitations and other formal documents. Examples of script font styles include Brush Script, Calligraphy, and Freestyle Script.

• Display fonts: These fonts are designed to be used in specific sizes to emphasize a particular message or enhance readability. They are often used for headings and other attention-grabbing text. Examples of display font styles include Comic Sans, Impact, and Papyrus.

Different fonts are utilized to add style to a web page or document, and specific fonts affect readability depending on the medium. Most modern word processors, such as Microsoft Word and Google Docs, give users access to numerous fonts, and they also allow users to change the font face, font point size, font color, and more.