8 letters
- slopping18
- slumping19
- slurping16
- smirking18
- sopiting14
- sparling15
- speiling15
- speiring14
- spieling15
- spiering14
- spiffing20
- spilings15
- spilling16
- spirting14
- splicing18
- splining16
- spoiling15
- spongier14
- spongily17
- spoofing17
- spooling15
- spooring14
- sporting14
- springal15
- stifling15
- stomping17
- storming14
- striping14
- swirling15
- tinfoils13
- trifling15
- tripling15
- tripolis12
- troilism12
- tromping17
- umpiring18
- uniforms16
- upflings19
- uprising15
- visoring15
- wimpling21