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Old 12-11-2011, 09:35 PM
Chronos Chronos is offline
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Join Date: Jan 2000
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Quote:
One example of three-way unrelated meanings is:
pen
(1) A writing instrument
(2) An area in which animals are held
(3) (slang) A place where convicted criminals are held (short for "penitentiary")
Although, the widespread adoption of meaning 3 was probably influenced by meaning 2.

I suppose if one wanted to stretch the meaning of "word", one could find acronyms or initialisms used for completely different things, in different contexts.