Major water pipe

The answer to “Major water pipe” in the The Washington Post crossword is MAIN — a 4-letter word. It most recently appeared in the The Washington Post crossword on August 25, 2026, a Tuesday puzzle, at 18-Down. 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.

“Major water pipe” answer

MAIN (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 MAIN.

What does MAIN mean?

Reading the plain dictionary sense of MAIN is often the fastest way to see why it answers this clue.

When else has “Major water pipe” appeared?

The Washington Post 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.

August 25, 2026 (most recent) → MAIN. We haven't indexed another appearance of this exact clue yet.

Frequently asked questions