11 letters
- perforation18
- perforators17
- performable24
- performance24
- pettifogged22
- pettifogger21
- pianofortes18
- pitchforked27
- postforming23
- prefocusing24
- prefocussed22
- prefocusses21
- profoundest20
- pussyfooted21
- pussyfooter20
- quatrefoils25
- rainforests15
- reafforests17
- reenforcing21
- refocussing21
- reforesting17
- reformation18
- reformative21
- reformatory19
- reformatted18
- reformulate19
- refortified18
- refortifies17
- reinforcers18
- reinforcing21
- reinforming21
- retransform18
- scaffolding25
- scalariform21
- severalfold21
- sinfonietta16
- slipforming24
- splayfooted21
- suffocating24
- suffocation22
- suffocative25
- sulfonamide21
- sulfonating20
- sulfonation18
- tenderfoots16
- terraformed18
- thenceforth22
- theretofore16
- thermoforms22
- transformed19
- transformer18
- trichlorfon21
- typefounder22
- unfoldments22
- unforgiving25
- unfortified20
- unfortunate18
- uniformness20
- unperformed23
- waterfowler21
- wildfowlers23
- wildfowling26