whiss /(h)wis/

To hiss, whistle, wheeze, etc

• fortify
• fortifying
• fortilage
• fortilages
• forting
• fortis
• fortissimo
• fortissimos
• fortississimo
• fortiter et recte
• fortitude
• fortitudes
• fortitudinous
• fortlet
• fortlets
• fortnight
• fortnightlies
• fortnightly
• fortnights
• for to
• for toffee
• Fortran
• fortress
• fortressed
• fortresses