RED-LETTER DAYred-letter day · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:RED-LETTER DAYTier 1Ordinal137Pythagorean56Classical129Reverse187Reverse Reduction70Standard1248Final Large1248Ordinal114Reduced24Atbash268Isopsephy1254Ordinal138Abjad1252