typefaces - What makes a font a "gothic" font?

It’s easy to find lots of fonts with gothic in their names. But what makes a typeface a “gothic” typeface?

Answer

A gothic typeface is not like medieval lettering at all. It actually comes from grotesk or grotesque which began around 1900. It’s basically a synonym for sans-serif and it is a movement that originated in the Scandinavian area and was widely applied by the Bauhaus.

Hence Akzidenz-Grotesk, hence Century Gothic, and pretty much any typeface with that name in it.