PARENTHESIS-FREE NOTATIONparenthesis-free notation · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:PARENTHESIS-FREE NOTATIONTier 1Ordinal276Pythagorean114Classical263Reverse345Reverse Reduction129Standard2062Final Large2712Ordinal244Reduced73Atbash304Isopsephy2121Ordinal285Abjad2090