Definition of OSO

The Meaning of OSO

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The Top Definition of OSO

The most popular meaning of OSO is: Other Significant Other

What Other Meanings of OSO Are There?

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What is OSO?

OSO is Other Significant Other

OSO Means

The definition of OSO is "Other Significant Other".

OSO Definition

The meaning of OSO

OSO means Other Significant Other.

Now you understand the definition of OSO - OSO means "Other Significant Other".

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What does OSO mean? OSO is an acronym, abbreviation or slang word that is explained above. If you ever forget what OSO means, just come back to and we'll define any acronym you need help with.

  1. ISO - Is seeking other
  2. ISO - In Search Of
  3. SO - significant other
  4. OBO - or best offer
  5. OTO - One Time Only
  6. SOSO - Same Old, Same-Old
  7. OST - Original Sound Track
  8. OS - operating system
  9. OSM - Awesome
  10. OSS - Open Source Software
  1. C# - Microsoft programming language
  2. M$ - Microsoft
  3. MFZ - Microsoft Free Zone
  4. MS - Microsoft
  5. YMMB - Yet More Microsoft Bashing