UPPER-LOWER-CLASSupper-lower-class · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:UPPER-LOWER-CLASSTier 1Ordinal203Pythagorean68Reverse202Reverse Reduction85Standard858Final Large858Ordinal165Reduced57Atbash318Isopsephy2121Ordinal222Abjad625