LANTHANOIDlanthanoid · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:LANTHANOIDTier 1Ordinal98Pythagorean44Classical93Reverse172Reverse Reduction55Standard550Final Large550Ordinal82Reduced28Atbash259Isopsephy225Ordinal81Abjad652