The following table gives an overview about the use of all characters that begin a markup element.
|=: Character |=< [[Blocks|00001007030000]] |=< [[Inlines|00001007040000]] 
|:''!''|<(free)|<(free)
|:''"''|<[[Verse block|00001007030700]]|<[[Short inline quote|00001007040100]]
|:''#''|<[[Ordered list|00001007030200]]|<[[marked / highlighted text|00001007040100]]
|:''$''|<(reserved)|<(reserved)
|:''%''|<[[Comment block|00001007030900]]|<[[Comment|00001007040000]]
|:''&''|<(free)|<[[Entity|00001007040000]]
|:''\'''|<(free)|<[[Computer input|00001007040200]]
|:''(''|<(free)|<(free)
|:'')''|<(free)|<(free)
|:''*''|<[[Unordered list|00001007030200]]|<[[strongly emphasized text|00001007040100]]
|:''+''|<(reserved)|<(reserved)
|:'',''|<(free)|<[[Sub-scripted text|00001007040100]]
|:''-''|<[[Horizontal rule|00001007030400]]|<""[[en-dash|00001007040000]]""
|:''.''|<(free)|<(free)
|:''/''|<(free)|<(free)
|:'':''|<[[Region block|00001007030800]] / [[description text|00001007030100]]|<[[Inline region|00001007040100]]
|:'';''|<[[Description term|00001007030100]]|<(free)
|:''<''|<[[Quotation block|00001007030600]]|<(free)
|:''=''|<[[Headings|00001007030300]]|<[[Computer output|00001007040200]]
|:''>''|<[[Quotation lists|00001007030200]]|<[[Inserted text|00001007040100]]
|:''?''|<(free)|<(free)
|:''@''|<[[Inline-Zettel block|00001007031200]]|<(reserved)
|:''[''|<(reserved)|<[[Linked material|00001007040300]], [[citation key|00001007040300]], [[footnote|00001007040300]], [[mark|00001007040300]]
|:''\\''|<(blocked by inline meaning)|<[[Escape character|00001007040000]]
|:'']''|<(reserved)|<End of [[link|00001007040300]], [[citation key|00001007040300]], [[footnote|00001007040300]], [[mark|00001007040300]]
|:''^''|<(free)|<[[Super-scripted text|00001007040100]]
|:''_''|<(free)|<[[Emphasized text|00001007040100]]
|:''`''|<[[Verbatim block|00001007030500]]|<[[Literal text|00001007040200]]
|:''{''|<[[Transclusion|00001007031100]]|<[[Embedded material|00001007040300]], [[Attribute|00001007050000]]
|:''|''|<[[Table row / table cell|00001007031000]]|<Separator within link and [[embed|00001007040320]] formatting
|:''}''|<End of [[Transclusion|00001007031100]]|<End of embedded material, End of Attribute
|:''~''|<[[Evaluation block|00001007031300]]|<[[Deleted text|00001007040100]]