suboctave /sub-okˈtiv/

1. The octave below
2. (also suboctave coupler) an organ coupler that gives an octave below

• pfennigs
• pfenning
• PFI
• PFLP
• PFP
• PG
• Pg
• PGA
• PGCE
• PGD
• PGM
• pH
• PHAB
• Phacelia
• Phacelias
• phacoid
• phacoidal
• phacolite
• phacolites
• phacolith
• phacoliths
• Phaedra complex
• phaeic
• phaeism
• phaeisms