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

• dead-wind
• dead wood
• dead-wood
• dead-work
• deaf
• deaf aid
• deaf aids
• deaf alphabet
• deaf-and-dumb alphabet
• deaf-and-dumb language
• deaf as a post
• deafen
• deafened
• deafening
• deafenings
• deafens
• deafer
• deafest
• deaf language
• deafly
• deaf-mute
• deaf-mutes
• deaf-mutism
• deafness
• deafnesses