This is Template:! – the documentation shown below is from Template:!/doc

Use this template instead of | in a template parameter value.

UsageEdit

{{!}}

The bar character (| also known as pipe) has a special meaning in some circumstances, for example, when used in a template parameter, or when used in a table.

To display a bar, you can always use | and that is the best solution when you need to display a bar in a template parameter or a table.

However, if you want to define a table in a template parameter then you need a real bar. In that case, you should use this template.

No special template is needed for "!" (exclamation mark).

See alsoEdit

• http://meta.wikimedia.org/wiki/Template:%21