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

• non-Euclidean
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• non-events
• non-executive
• non-existence
• non-existent
• non-factual
• non-fat
• non-fatal
• non-fattening
• non-feasance
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• non-fiction
• non-fictional
• non-fiction novel
• non-figurative
• non-flam film
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• non-fulfilment
• non-functional
• nong
• non-governmental
• non-gremial