humdinger /hum-dingˈər/ (slang)

1. An exceptionally excellent person or thing
2. A smooth-running engine
3. A swift vehicle or aircraft

• sosaties
• SOSed
• SOSes
• SOSing
• so so
• so-so
• soss
• sossed
• sosses
• sossing
• sossings
• sostenuto
• sostenutos
• sot
• SOT
• Sotadean
• Sotadic
• soterial
• soteriological
• soteriologies
• soteriology
• so that
• so then
• so there
• Sothic