4 letters
- oops7
- oots4
- orbs7
- osar4
- ossa4
- pams10
- poms10
- rams7
- roam7
- robs7
- roms7
- room7
- sabe7
- sabs7
- sago6
- same7
- samp10
- scab10
- scam10
- seam7
- sham9
- shmo9
- shoo6
- sibb10
- sima7
- slab8
- slam8
- slob8
- smog9
- snob8
- soak8
- soap7
- soar4
- sobs7
- soda5
- sofa7
- soja13
- sola5
- solo5
- soma7
- some7
- sook8
- soon5
- soot4
- sora4
- sorb7
- soya6
- spam10
- stab7
- stoa4
- stob7
- suba8
- sumo8
- swab10
- swam10
- swob10
- sybo9
- tabs7
- tams7
- taos4
- tomb10
- toms7
- toom7
- umbo11
- wabs10
- womb13
- woos7
- yams9
- yobs9
- zoom16
- zoos13