15-letter words with the thirteenth letter "O"

Constraint applied: with the thirteenth letter "O". Here are the results. Middle slots favor I, R, and O. That reduces noise in the output. Common picks here include: ADMINISTRATIONS, AEROSOLIZATIONS, ALKALINIZATIONS, and ALLEGORIZATIONS.

Word Game Helper

15-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 (352 words)

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Pattern Insights

Common pairs
ON, TI, NS
Top endings
-NS, -US, -RS
Middle letters
I, R, O
Double letters
16% of results
Position 1
D, R, P
Total matches
352 words