TESTACEANtestacean · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:TESTACEANTier 1Ordinal88Pythagorean25Classical84Reverse155Reverse Reduction56Standard1010Final Large1660Ordinal92Reduced20Atbash23Isopsephy882Ordinal99Abjad934