12-letter words with the tenth letter "O"

Looking for 12-letter words with the tenth letter "O"? Suffix frequency highlights -NS, -US, -RS, and -RY. Those endings are productive. A few to start with: ABBREVIATORS, ABOMINATIONS, ABSTRACTIONS, and ACCELERATORS.

Word Game Helper

12-letter words appear mostly in crosswords and word wheel puzzles; filter by the letters you already have to narrow this list to your answer.

📝Results (1000 words)

Click any word to copy & define

Pattern Insights

Common pairs
ON, NS, IO
Top endings
-NS, -US, -RS
Double letters
18% of results
Position 1
C, P, S
Total matches
1000 words