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Word Ways

Authors

Ben Rogers

Abstract

The words HUTS, RUTS, ARMY, and DENE (British: "valley") have in common a property not too hard to discover. They are all transposable (HUTS = SHUT and THUS, RUTS = RUST, ARMY = MARY, and DENE = NEED). Suppose we replace ARMY with NAVY, so that our set of four words is now HUTS, RUTS, NAVY, and DENE. What more unusual, more difficult to discover, property do they now have in common?

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