1. The quality of being infectious

Derived forms: infectiousnesses

• fantasy world
• fantods
• fanweed
• fanwort
• fanzine
• FAO
• FAQ
• faqir
• faquir
• far
• far and away
• far and near
• far and wide
• far cry
• Far East
• far left
• far-famed
• far-flung
• far-off
• far-out
• far-reaching
• far-right
• farad
• faradaic
• Faraday