suboctave /sub-okˈtiv/

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

• fall out
• fall-out
• fallout
• fallouts
• fall over
• fall over backwards
• fall over oneself
• fallow
• fallow-chat
• fallow-chats
• fallow deer
• fallowed
• fallower
• fallowest
• fallow-finch
• fallowing
• fallowness
• fallownesses
• fallows
• falls
• fall short
• fall through
• fall to
• fall to the ground
• fall-trap