Sans-serif letterform is one that does not have extending features called “serifs” at the end of strokes. Sans-serif fonts tend to have less line width variation than serif fonts. In most print, they are often used for headings rather than for body text. They are often used to convey simplicity and modernity or minimalism.
Sans-serif fonts have become the most prevalent for display of text on computer screens. On lower-resolution digital displays, fine details like serifs may disappear or appear too large.