WITCH colon: Revision 1
"pair", "twin", "ditto", "reflection", "aspect"
Operators containing this character
:: sigil and nesting separator for packages (and consequently, types)
When used inside regexes
:: may often be seen after sigils with other special symbols but is only for scoping. Look in this section on the other characters' pages.
As an adverb
: introduces an adverbial Pair constructor which includes also radix in literal numbers.
: after a parameter name in a Signature "names the invocant"<>
Hyper operator and meta operator restrictions
Old, deprecated, or other language uses
? : the ternary operator from perl5 and other languages is ?? !! in perl6