doppelgänger /dopˈl-gengˈər/ or doppelganger /-gangˈ/

1. A ghostly double of a human person, an apparition
2. A wraith

• biffed
• biffin
• biffing
• biffins
• biffs
• bifid
• bifilar
• bifocal
• bifocals
• bifold
• bifoliate
• bifoliolate
• biform
• biftah
• biftahs
• bifter
• bifters
• BIFU
• bifurcate
• bifurcated
• bifurcates
• bifurcating
• bifurcation
• bifurcations
• big