staff STAF star STAR stab STAB stag STAG stat STAT store STOR stop STOP step STEP stet STET stead STED stuff STUF stub STUB stud STUD scar SKAR scab SKAB scat SKAT scad SKAD scoff SKOF score SKOR scot SKOT scuff SKUF skull SKUL scud SKUD spar SPAR spag SPAG spat SPAT spazz SPAZ spore SPOR spot SPOT spell SPEL sped SPED spur SPUR spud SPUD shall SHAL shag SHAG shat SHAT shad SHAD shove SHOF shore SHOR shop SHOP shot SHOT shod SHOD shell SHEL shed SHED sure SHUR shut SHUT thug THUG thus THUS thud THUD trap TRAP trad TRAD trot TROT trod TROD tress TRES tread TRED truss TRUS chaff KHAF char KHAR chap KHAP chat KHAT chad KHAD chore KHOR chop KHOP chess KHES chub KHUB chug KHUG crap KRAP crab KRAB crag KRAG crass KRAS crop KROP cross KROS cress KRES cred KRED crud KRUD prag PRAG prat PRAT prof PROF prop PROP prod PROD pref PREF prep PREP press PRES shrub SHRUB throb THROB threat THRET thread THRED