1. With two fine threads.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• vifilar,
• nifilar,
• hifilar,
• gifilar,
• bufilar,
• bjfilar,
• bkfilar,
• bofilar,
• b9filar,
• b8filar,
• biffilar,
• bifillar,
• bifilarr,
• fifilar,
• bifilair,
• bifilier,
• biffilair,
• biffilarr,
• biffillar,
• bufillar

• biovular,
• burglar,
• bipolar,
• boiler,
• buffalo,
• broiler,
• by far,
• Befell,
• befall,
• baffle.