9 letters
- pronephra18
- pronghorn18
- proofread16
- propagate17
- prophages19
- proponent17
- prorating15
- proration13
- prorogate14
- prorogued16
- prorogues15
- prosateur13
- prosector15
- prosomata15
- prostrate12
- protended15
- protestor12
- prothorax21
- protoderm16
- protonate13
- protonema16
- protostar12
- protruded15
- protrudes14
- pteropods16
- pterosaur13
- pyorrheas16
- radiators10
- raindrops14
- rampagers17
- ramparted16
- rancheros15
- rangeland15
- ratooners10
- ratooning13
- rattooned11
- readapted14
- readopted14
- readorned12
- reanoints11
- reaphooks18
- reasoning13
- redactors13
- redundant14
- regardant13
- regathers13
- regranted13
- regrowths16
- rehardens13
- renegados13
- renograms15
- renovator14
- reordains11
- repasting15
- rephrased15
- reportage14
- reporting15
- repugnant17
- reshaping17
- resodding14
- resonants11
- resonated11
- resonator10
- resorting12
- respading16
- responded15
- responder14
- restoring12
- retardant11
- retarding13
- rethreads12
- rhapsodes15
- rhatanies12
- rhodonite13
- rhodopsin16
- rigadoons13
- roadhouse13
- roadstead11
- roadsters10
- roborants13
- roentgens13
- rogations12
- rotatores9
- rotenones11
- runagates13
- sabotaged15
- saddening15
- sainthood13
- sandpaper17
- sandstone12
- sapheaded16
- sapogenin16
- saxophone22
- scapegoat17
- seastrand11
- senhorita12
- separated13
- separator12
- serigraph16
- serotonin11
- serrating12
- serration10
- shampooed18
- shampooer17
- sharecrop17
- sharpened16
- sharpener15
- shogunate15
- shoreward15
- shortages13
- shortened13
- shortener12
- shorthand15
- shorthorn14
- shredding16
- snakeroot14
- soapstone13
- soddening15
- sonorants11
- sopranino14
- sororates9
- spearhead15
- spearwort15
- sphenodon17
- sponsored14
- sporangia15
- spreading16
- stagehand15
- staghound16
- stagnated13
- standards12
- stanhopes15
- starboard13
- stargazed21
- stargazer20
- statehood12
- stegodons13
- sternward14
- stomodaea13
- stonecrop16
- straddler12
- stranders11
- stranding14
- strangers12
- strangled14
- strangler13
- straphang17
- straphung18
- strappado16
- stravaged16
- strongman16
- strongmen16
- supergood16
- superroad14
- surrogate12
- tagboards15
- tandooris11
- tapaderas13
- tapaderos13
- tapenades14
- tarnished13
- tarpapers15
- tarragons12
- teaboards13
- teardowns14
- teardrops13
- teaspoons13
- terrapins13
- tetragons12
- tetrapods13
- therapsid15
- theropods15
- threaders12
- threading15
- threapers14
- threaping17
- threnodes13
- toadstone11
- toolheads13
- toreadors10
- tornadoes11
- torpedoed14
- torpedoes13
- tournedos12
- tradesman14
- tragedian13
- tragopans15
- tramroads13
- transcend15
- transpire13
- transport13
- transpose13
- transuded13
- trapanned15
- trapdoors13
- trapesing15
- trepanned15
- trigraphs16
- trihedron13
- troponins14