Longest river entirely within Switzerland

The answer to “Longest river entirely within Switzerland” in the Wall Street Journal crossword is AARE — a 4-letter word. It most recently appeared in the Wall Street Journal crossword on July 31, 2026, a Friday puzzle, at 19-Across. Below you'll find why that fill fits, every other answer we've recorded for this clue, and links into the puzzle it came from.

“Longest river entirely within Switzerland” answer

AARE (4 letters)

Reveal the solution one letter at a time with the tiles above if you'd rather nudge yourself toward it than see the whole word at once. Just want it outright? The answer is AARE.

Why the answer is AARE

Think of the Swiss river that winds through Bern before joining the Rhine. 🏞️

When else has “Longest river entirely within Switzerland” appeared?

Wall Street Journal reuses clues across dates, sometimes with a different answer depending on the grid. Here's where this exact clue has shown up, and what the answer was each time — handy when you're checking whether today's fill is the only one.

July 31, 2026 (most recent) → AARE. We haven't indexed another appearance of this exact clue yet.

Frequently asked questions