Template:(!

Template call (m for magic word)	Output (delayed interpretation as wikimarkup)	HTML alternative (never interpreted as wikimarkup)	Why you might want to use this
{{!}} (m)	|	| or {{pipe}}	Displaying pipe characters inside of a parser function
{{=}} (m)	=	=	Displaying equal signs inside of unnamed parameters (e.g. {{MyTemplate|1+1=2}} will assign 2 to {{{1+1|}}}; {{MyTemplate|1+1{{=}}2}} will do what you want)
{{!!}}	||	||	Displaying a break between two table cells inside of a parser function
{{!(}}	[	[	Displaying a bracket inside of an external link
{{)!}}	]	]	Displaying a bracket inside of an external link
{{!((}}	[[	[[	Displaying a bracket inside of a link
{{))!}}	]]	]]	Displaying a bracket inside of a link
{{(}}	{	{	Escaping a single brace immediately next to a template or parser function to avoid turning it into a parameter
{{)}}	]	}	Escaping a single brace immediately next to a template or parser function to avoid turning it into a parameter
{{((}}	{{	{{	Displaying open braces for a template without actually transcluding that template
{{))}}	}}	}}	Displaying closed braces for a template without actually transcluding that template
{{(((}}	{{{	{{{	Displaying a template parameter's open curly braces without actually using that variable
{{)))}}	}}}	}}}	Displaying a template parameter's closed curly braces without actually using that variable
{{(!}}	{|	{|	Starting a table inside of a parser function
{{!-}}	|-	|-	Starting a new table row inside of a parser function
{{!)}}	|}	|}	Closing a table inside of a parser function