B.T.U.B.T.U. · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:B.T.U.Tier 1Ordinal43Pythagorean7Classical41Reverse38Reverse Reduction20Standard408Final Large408Ordinal30Reduced12Atbash381Isopsephy702Ordinal45Abjad408