The clue "underground" last appeared in the Thomas Joseph - King Feature Syndicate crossword on October 1, 2016. The correct answer for this puzzle is "METRO", a 5-letter word.
Solution METRO is our most searched for solution by our visitors. Solution METRO is 5 letters long. We have 11 further solutions of the same word length.
There are 281 solutions. The longest is GRAVITY-OPERATED RAILWAY with 22 letters, and the shortest is L with 1 letters.
Indeed, the puzzle clue "UNDERGROUND" has seen a surge in lookups recently (last checked: 04 Dec 2025). Apparently it´s giving players some headaches!
Use our smart search feature to filter by word length. Our system organizes results by frequency and relevance. Search through millions of answers to thousands of crossword clues—for free!
Solutions are between 1 and 22 letters long.
| Clue | Answer |
|---|---|
|
|
|
| Tube; covert (11) | |
| Secret or hidden (11) | |
| Beneath surface (11) | |