diesis /dīˈi-sis/

1. A tiny difference in pitch, the difference between the sum of four minor thirds and an octave (great diesis) or three major thirds and an octave (enharmonic diesis) (music)
2. The double dagger (‡), used to indicate a reference (printing)

• back-formations
• back-friend
• back-friends
• backgammon
• backgammoned
• backgammoning
• backgammons
• back-ganging
• back garden
• back gardens
• back green
• back greens
• background
• background heating
• background processing
• background queue
• background radiation
• background radiations
• backgrounds
• background tasks
• back-hair
• back-hairs
• backhand
• backhanded
• backhanded compliment