to epidemian, yes, it&#x27;s what I was referring to, sorry I wasn&#x27;t more clear.<p>raiph: we&#x27;re talking about perl 6&#x27;s two choices for the things you&#x27;ve brought up, that it&#x27;s in all-caps and that it consists of the contextually nonsense word &#x27;what&#x27;.<p>The word &quot;what&quot; is one of the most common English words - so the opposite of a better, explicit choice, like type, class, classtype, etc - and doesn&#x27;t even <i>mean</i> &quot;what-is&quot; if you read it out loud.  3.WHAT doesn&#x27;t sound like &quot;What 3 is&quot; - it sounds like &quot;3 - I didn&#x27;t hear you&quot; or if you&#x27;re being very generous it means &quot;What is 3?&quot; (asking for its value).<p>You asked what I would suggest?  If you want to be really cute and grammatical while sounding like a natural language, here is a suggestion.  Instead of WHAT my suggestion is the word STYPE, and read it as though the preceding word had an apostrophe at the end:  3.STYPE, thiswindow.STYPE  and so forth.  (3&#x27;s type, thiswindow&#x27;s type, etc).  anyway you asked for a suggesiton, there you have it.  I woudn&#x27;t use it myself though.