diapason /dī-ə-pāˈzən, -sən/ (music)

1. A full volume of various sounds in concord
2. The whole range or compass of tones
3. A standard of pitch
4. A whole octave (obsolete)
5. A bass part (obsolete)
6. Harmony (obsolete)
7. A foundation-stop of an organ (open or stopped diapason) extending through its whole range

• oversworn
• overswum
• overt
• overt act
• overt acts
• overtake
• overtaken
• overtakes
• overtaking
• overtalk
• overtalked
• overtalking
• overtalks
• overtask
• overtasked
• overtasking
• overtasks
• overtax
• overtaxed
• overtaxes
• overtaxing
• overtedious
• overteem
• overteemed
• overteeming