The crossword answer to “for what reason” is WHY in most standard puzzles.

Quick Scoop: “for what reason crossword clue”

If you’ve hit the clue “For what reason” (sometimes written as “For what reason?” or “For what reason or purpose”) the go‑to answer in major crosswords is the simple three‑letter word WHY.

Typical patterns you’ll see:

  • “For what reason?” → WHY (3 letters)
  • “For what reason or purpose” → WHY (3 letters)
  • NYT and other big papers also clue WHY with “For what reason?” very frequently.

A quick way to confirm in your own grid:

  1. Count the spaces: if it’s 3 letters, WHY is almost always right.
  1. Check crossings: W‑H‑Y fits cleanly with very common letters and is favored by setters.

If your puzzle is asking “For what reason crossword clue” , you can safely fill in WHY unless your letter pattern clearly forces something else.

TL;DR:
The most common and almost always correct answer for the “for what reason crossword clue” is WHY.

Information gathered from public forums or data available on the internet and portrayed here.