What does 550 stand for?

What does 550 mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: 550.

We've found a total of 1 definition for 550:

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"550." Abbreviations.com. STANDS4 LLC, 2015. Web. 5 Mar. 2015. <http://www.abbreviations.com/550>.

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