5 letters
- ocher10
- ochre10
- ochry12
- ocrea8
- octad9
- octal9
- octan9
- ogams10
- ogham12
- ohias7
- ohing10
- ohmic13
- omasa8
- omega10
- omits8
- onium10
- ontic9
- oping11
- optic11
- orach10
- orang8
- orate5
- orbit8
- orcas8
- orcin9
- organ8
- orgic10
- ornis6
- orpin9
- ortho7
- osmic11
- ostia5
- other7
- ottar5
- ought10
- owing11
- pacha13
- pagan11
- paint9
- panga11
- panic12
- panto9
- parch13
- pargo10
- patch13
- patin9
- patio8
- piano9
- picot11
- pinch14
- pingo11
- pinot9
- pinta9
- pinto9
- pirog10
- pitch13
- piton9
- poach13
- point9
- porch13
- praam11
- prang11
- prima11
- primo11
- print9
- prion9
- prong11
- qanat15
- rabat8
- rabic11
- racon9
- radio6
- radon7
- ragas7
- ragis7
- raias5
- rains6
- rainy8
- rajah16
- ramen9
- ramet8
- ramie8
- rance9
- ranch11
- range8
- rangy10
- ranid7
- ranis6
- rants6
- ratal6
- ratan6
- ratch10
- rathe7
- ratio5
- ratos5
- ravin10
- rawin9
- rayah9
- rayon8
- reach10
- react8
- reata5
- recon9
- recta8
- recti8
- recto8
- regma10
- regna8
- reign8
- reman9
- remit8
- renig8
- retag7
- retch10
- retia5
- rhino8
- rhomb13
- rhyta9
- riant6
- riata5
- ricin9
- right9
- rigor7
- rings8
- rioja14
- riots5
- roach10
- roams8
- roans6
- roast5
- robin9
- roman9
- rosin6
- rotas5
- rotch10
- rotis5
- rough10
- routh8
- rowan9
- rowth10
- ruana7
- ruing9
- runic10
- rutin7
- sacra8
- saiga7
- saint6
- saith7
- sanga8
- sangh10
- santo6
- saran6
- sarin6
- satin6
- scant9
- scart8
- schmo13
- scion9
- scorn9
- scrag10
- scram11
- scrim11
- sharn8
- shirt7
- shoat7
- shorn8
- short7
- sight9
- sigma10
- simar8
- sitar5
- smart8
- smith10
- snath8
- snort6
- sonar6
- sonic9
- staig7
- stain6
- stair5
- stang8
- stich10
- sting8
- stoai5
- stoic8
- stoma8
- storm8
- stria5
- tabor8
- tache10
- tachs10
- tacit8
- tacos8
- tafia8
- tahrs7
- taiga7
- tains6
- taint6
- takin10
- talar6