QUADRAPHONIC SYSTEMquadraphonic system · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:QUADRAPHONIC SYSTEMTier 1Ordinal228Pythagorean84Classical215Reverse258Reverse Reduction96Standard1126Final Large1686Ordinal190Reduced55Atbash393Isopsephy2321Ordinal233Abjad976