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On Fri, 19 Mar 2010 13:38:14 -0700 (PDT), tmclone
wrote:


Typo's is short for "Typographical Errors" - the apostrophe is
correct, and does not make it possessive.- Hide quoted text -


That would be true if it were a contraction (do not = don't), but it's
an abbreviation, not a contraction. You can have a "typo" or multiple
"typos".

It is a contraction. "S" being the last letter of "errorS"

No - "Typo" is singular, "Typos" is plural.