HEAT OF FORMATIONheat of formation · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:HEAT OF FORMATIONTier 1Ordinal166Pythagorean76Classical158Reverse239Reverse Reduction77Standard1283Final Large2653Ordinal158Reduced59Atbash406Isopsephy2025Ordinal207Abjad1286