Wednesday, 23 January 2008

Sequences of words formed by the addition of letters

The nine-word sequence

   I, in, sin, sing, sting, string, staring, starting (or starling), startling

can be formed by successively adding one letter to the previous word.

There are a number of other nine-word sequences that use only common words, and numerous shorter sequences, such as the seven-word

   a, at, rat, rate, irate, pirate, pirates.


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