13-letter words with the ninth letter "O"

Filter used: _ _ _ _ _ _ _ _ O _ _ _ _. These words qualify. Expect endings like -ES, -LY, -ST, and -NG. Middle positions often include O, T, and S. A few to start with: ACETAMINOPHEN, ACETYLCHOLINE, ACRIMONIOUSLY, and ADVENTUROUSLY.

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13-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 (485 words)

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Pattern Insights

Common pairs
ON, ER, ES
Top endings
-ES, -LY, -ST
Middle letters
O, T, S
Double letters
19% of results
Position 1
C, P, S
Total matches
485 words