UNDULATIONundulation · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:UNDULATIONTier 1Ordinal131Pythagorean41Classical124Reverse139Reverse Reduction58Standard562Final Large1212Ordinal94Reduced40Atbash419Isopsephy1315Ordinal136Abjad563