BACK EXERCISEback exercise · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:BACK EXERCISETier 1Ordinal105Pythagorean51Classical99Reverse219Reverse Reduction75Standard652Final Large1132Ordinal130Reduced22Atbash401Isopsephy448Ordinal115Abjad416