QUADRIVIUMquadrivium · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:QUADRIVIUMTier 1Ordinal135Pythagorean54Classical128Reverse135Reverse Reduction63Standard382Final Large942Ordinal94Reduced31Atbash437Isopsephy987Ordinal114Abjad457