SD
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Tweet abbr. 1. Latin Scientiae Doctor (Doctor of Science) 2. or S.D. South Dakota 3. special delivery 4. standard deviation |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
Sd.
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Tweet abbr. sound (body of water) |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.