suboctave /sub-okˈtiv/

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

• tailormakes
• tailormaking
• tailors
• tailor's chalk
• tailor's chalks
• tailor's tack
• tailor's tacks
• tailpiece
• tailpieces
• tailpipe
• teschenites
• TESL
• tesla
• tesla coil
• tesla coils
• teslas
• TESOL
• TESSA
• tessara-
• tessaraglot
• tessella
• tessellae
• tessellar
• tessellate
• tessellated