suboctave /sub-okˈtiv/

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

• dogtrots
• dogvane
• dogvanes
• dog violet
• dog violets
• dogwatch
• dogwatches
• dog-weary
• dog-wheat
• dog-whelk
• dog-whelks
• dog whistle
• dog-winkle
• dogwood
• dogwoods
• dogy
• d'oh
• doh
• DoH
• dohs
• dohyo
• dohyos
• DOI
• doiled
• doilies