9 letters
- slantwise14
- slimsiest13
- smaltines14
- smaltites13
- socialise13
- socialism16
- socialist13
- socialite13
- somewhats17
- steamship17
- swampiest18
- swimmiest18
- swirliest13
- swishiest14
- switchers17
- switchman21
- switchmen21
- tachismes17
- tachistes14
- thalassic15
- thematics17
- thiamines15
- tieclasps16
- timescale16
- victimise19
- vitalises14
- vitalisms17
- waistline14
- wambliest19
- wampishes20
- whackiest21
- whatsises14
- whimsical21
- whiptails18
- whirliest15
- whistlers15
- whitecaps20
- whitetail15
- wholistic18
- wiseliest13
- wisterias12
- witchiest17
- witchlike22
- witticism18