duffer¹ /dufˈər/

1. An unskilful or worthless person (informal)
2. A fogey, a useless old fellow (informal)
3. A counterfeit coin
4. An unproductive mine

• sulphadiazine
• sulphadiazines
• sulphadimidine
• sulphamethoxazole
• sulphanilamide
• sulphanilamides
• sulphas
• sulphatase
• sulphatases
• sulphate
• swatters
• swattier
• swattiest
• swatting
• swattings
• swatty
• sway
• swayback
• swaybacked
• swaybacks
• swayed
• subducing
• subduct
• subducted
• subducting