⁝ — Token separator
Syntax. Keys: Alt-:. Hanzi: 隔
⁝ separates tokens without ending their run. It prevents adjacent names from merging and stops a literal strand continuing. It has no value and makes no function call.
h←- ⋄ m←5 ⋄ h⁝m ⍝ ¯5
≥⍣3⁝5 ⍝ 8h⁝m is h(m), and ≥⍣3⁝5 is (≥⍣3)5. A space also groups runs, as Syntax describes. ⁝ leaves the grouping unchanged. Parentheses still group compound operands and trains within a run. Composing functions gives examples.