The clue “Worker’s “on vacation” initialism” is a classic crossword staple, frequently appearing in puzzles like the WSJ crossword. For the puzzle dated September 30 2026, the definitive 3-letter answer is: OOO.
Expert Tip: When you’re stuck, try to analyze the structure of the clue itself. Is it a direct definition, a pun, a fill-in-the-blank, or a pop culture reference? Identifying the type of clue you’re dealing with is a key skill for improving your solving speed.