10 letters
- overcoming23
- overmining21
- permission17
- persimmons20
- poisonings17
- precisions17
- processing19
- procession17
- reasonings14
- recensions15
- rechoosing18
- reckonings21
- recognises16
- recrossing16
- reemission14
- reignition14
- reimposing19
- reinciting17
- rejoicings25
- reminisces17
- remissions14
- rescinding18
- rescission14
- rimosities13
- romanising17
- scammonies20
- schmoosing21
- scissoring16
- sclerosing17
- screenings17
- scrimmages21
- sectioning17
- seignories13
- seismogram18
- semicolons18
- seriocomic19
- serotonins12
- shimmering21
- signifiers16
- signiories13
- signorinas14
- simonizing26
- sinologies14
- snickering21
- snookering18
- sociograms18
- solecising17
- sonorities11
- sponsoring17
- spoonerism17
- sporogenic19
- summonsing21
- uncommoner22
- uncrossing18