- gorgon
- gorp
- grog
- grotto
- group
- grout
- grunt
- gunport
- guru
- outpour
- outro
- outrun
- poor
- porn
- porno
- port
- pour
- prong
- pronoun
- pronto
- prop
- proton
- purport
- purr
- root
- rotgut
- rotor
- rout
- rung
- runout
- runt
- torn
- toro
- torpor
- tort
- tour
- troop
- trot
- trout
- turn
- turnout
- tutor
- uproot
- upturn