gaffe or (rare) gaff /gaf/

A blunder

• resents
• reserpine
• reserpines
• reservable
• reservation
• reservation of the sacrament
• reservations
• reservatories
• reservatory
• re-serve
• reserve
• reserve bank
• reserve banks
• reserve currency
• re-served
• reserved
• reserved list
• reserved lists
• reservedly
• reservedness
• reservednesses
• reserved occupation
• reserved occupations
• reserved word
• reserved words