4 letters
- nibs8
- nill7
- nils6
- nips8
- nubs9
- null8
- obis7
- oils5
- opus8
- ouph10
- owls8
- pail8
- pall9
- pals8
- pash9
- pawl11
- paws10
- pehs9
- pews10
- pfui11
- phew12
- phis9
- phiz18
- phut10
- pial8
- pias7
- pics10
- pies7
- pigs9
- pile8
- pili8
- pill9
- pily10
- pins8
- pips10
- pish9
- piso7
- piss7
- pith9
- pits7
- pleb11
- plew11
- plie8
- plow11
- plug11
- plum12
- plus9
- pois7
- poll9
- pols8
- posh9
- pows10
- psis7
- pubs11
- puds9
- pugh12
- pugs10
- pula9
- pule9
- puli9
- pull10
- pulp12
- puls9
- puns9
- pups11
- puri8
- purl9
- purs8
- push10
- puss8
- puts8
- quip17
- rhus7
- ribs7
- rill6
- rips7
- rubs8
- rush7
- sail5
- sall6
- salp8
- saul6
- scup11
- sell6
- shaw9
- shew9
- shim9
- shin7
- ship9
- shit6
- shiv10
- shop9
- show9
- shri6
- shul8
- shun8
- shut7
- sial5
- sibb10
- sibs7
- sigh8
- sild6
- silk9
- sill6
- silo5
- silt5
- simp10
- sinh7
- sipe7
- sips7
- sith6
- skip11
- slab8
- slap8
- slaw8
- slew8
- slid6
- slim8
- slip8
- slit5
- slob8
- slop8
- slow8
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- snib8
- snip8
- snub9
- soil5
- soli5
- soph9
- soul6
- soup8
- spew10
- spic10
- spik11
- spin8
- spit7
- spiv11
- spud9
- spue8
- spun9
- spur8
- stub8
- suba8
- subs8
- such10
- sugh9
- suit5
- sulk10
- sulu7
- sump11
- supe8
- sups8
- swab10
- swap10
- swig9
- swim10
- swob10
- swop10
- swum11
- syli7
- syph11
- this6
- thus7
- till6
- tils5
- tips7
- tubs8
- tuis5
- tups8
- tush7
- ughs9
- ulus7
- umps11
- upas8
- upby13
- urbs8
- vill10
- wabs10
- wail8
- wall9
- waps10
- wash9
- wasp10
- waul9
- webs10
- well9
- whap12
- whid10
- whig11
- whim12
- whin10
- whip12
- whir9
- whit9