no

• valid boolean value
• predefined variable
  • beginning in 1.64, the predefined variable No has a value that is a "native boolean". This allows it to be treated as equal to False and Off in comparisons (when the booleanComparison global property is set to Normal)
  • Related: yes, true, false, on, off, booleanComparison
• keyword
  • there is no
  • but no less than, but no more than (new in 1.67)