The Collaborative International Dictionary
To be at sixes and sevens
Six \Six\, n.
The number greater by a unit than five; the sum of three and three; six units or objects.
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A symbol representing six units, as 6, vi., or VI. To be at six and seven or To be at sixes and sevens,
to be in disorder.
--Bacon.
--Shak.
--Swift.to be in a dispute or disagreement; -- often used with with.