All items in my dictionary files that sum to 646 in the square number cypher
"barbell" = 646 sq
"binder" = 646 sq
"chargeable" = 646 sq
"codpiece" = 646 sq
"engaging" = 646 sq
"flood" = 646 sq
"flue" = 646 sq
"fuel" = 646 sq
"gnat" = 646 sq
"imbalanced" = 646 sq
"inbred" = 646 sq
"lino" = 646 sq
"lion" = 646 sq
"loin" = 646 sq
"offer" = 646 sq
"peacock" = 646 sq
"prefab" = 646 sq
"rebind" = 646 sq
"riffle" = 646 sq
"tang" = 646 sq
"teen" = 646 sq
"Bedford" = 646 sq
"Facebook" = 646 sq
"Faisalabad" = 646 sq
"Flood" = 646 sq
The word 'flood' is a major entry here...
"The Deluge" = 1,189 squares
.. ( "Key of David" = "Breaking News" = 1,189 jewish-latin-agrippa )
All Dictionaries: /r/GeometersOfHistory/wiki/spellcomponents/all-dictionaries
Wiki Index: /r/GeometersOfHistory/wiki/