White supremacists use the letter/number combination H8 to mean "hate." Usage dates back at least to the 1990s and may originally derive from punk subculture. It has become more common in recent years with the spread of text message abbreviations. Common motifs for the word include playing cards and billiard balls.

This database provides an overview of many of the terms and individuals used by or associated with movements and groups that subscribe to and/or promote extremist or hateful ideologies.