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Serif
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<table><tbody><tr><td></td><td>Sans-serif font</td></tr><tr><td></td><td>Serif font</td></tr><tr><td></td><td>Serif font (red serifs)</td></tr></tbody></table> <p>In <a href="/facts/Typography/byx4sANl">typography</a>, a serif (/ˈsɛrɪf/) is a small line or stroke regularly attached to the end of a larger stroke in a letter or symbol within a particular <a href="/facts/Font/04Q7sE8J">font</a> or family of fonts. A <a href="/facts/Typeface/It41hIjl">typeface</a> or "font family" making use of serifs is called a serif typeface (or serifed typeface), and a typeface that does not include them is <a href="/facts/Sans-serif/25okAUVu">sans-serif</a>. Some typography sources refer to sans-serif typefaces as "grotesque" (in <a href="/facts/German_language/oWaQIDA8">German</a>, <i>grotesk</i>) or "Gothic" (although this often refers to <a href="/facts/Blackletter/9r62McCb">blackletter</a> type as well) and serif typefaces as "<a href="/facts/Roman_type/qT1JHFWx">roman</a>" (or in German, <i>Antiqua</i>). </p><p>Serif typefaces can be broadly classified into one of four subgroups: Old-style, Transitional, Didone, and Slab serif, in order of first emergence. </p>