Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym OB is...

OB is

  • Obstetrician

More Meanings For OB:

  • Object cut/paste file (IBM LinkWay)
  • Output Block
  • Other Board
  • Object Bus
  • Overflow Bucket
  • Option Button
  • Obnoxious Because
  • Old Buddy
  • Oligosaccharide Binding
  • Optical Bar
  • Outer Banks
  • Ornery Brat
  • One Big
  • Oh Baby
  • Our Beds

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