Try Our Apps
Dictionary.com

follow Dictionary.com

The Word of the Year is...

SD1

1.
the intelligence and counterespionage service of the Nazi SS.
Origin of SD1
< German Sicherheitsdienst

SD2

1.
sea-damaged.
2.
South Dakota (approved especially for use with zip code).
3.
Statistics. standard deviation.

L.S.D.

or £.s.d. l.s.d

1.
pounds, shillings, and pence.
Origin
< Latin librae, solidī, dēnāriī

sd.

1.

s.d.

1.
sine die.
2.
Statistics. standard deviation.

S.D.1

1.
doctor of science.
Origin
< Latin Scientiae Doctor

S.D.2

1.
sea-damaged.
2.
senior deacon.
3.
South Dakota.
4.
special delivery.
5.
Statistics. standard deviation.

S/D

1.
school district.
2.
sight draft.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
Cite This Source
Examples from the Web for SD
Contemporary Examples
Historical Examples
British Dictionary definitions for SD

sd1

abbreviation
1.
sine die
2.
sound
3.
(philosophy) sense datum

sd2

abbreviation
1.
Sudan

SD

abbreviation
1.
South Dakota
2.
(statistics) Also sd. standard deviation
3.
Swaziland (international car registration)

L.S.D.

abbreviation (in Britain, esp formerly)
1.
librae, solidi, denarii
Word Origin
Latin: pounds, shillings, pence
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for SD

l.s.d.

abbreviation of British currency units, from Latin librae, soldi, denarii, Roman equivalent of "pounds, shillings, pence."

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
SD in Medicine

SD abbr.
streptodornase

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
SD in Technology

networking
The country code for the Sudan.
(1999-01-27)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
Cite This Source
Related Abbreviations for SD

sd

1.
said
2.
sewed
3.
Sindhi

SD

1.
San Diego
2.
San Diego Chargers
3.
San Diego Giants
4.
Latin Scientiae Doctor (Doctor of Science)
5.
should (shortwave transmission)
6.
sight draft
7.
software development
8.
South Dakota
9.
Southern District
10.
special delivery
11.
standard deviation
12.
Swaziland (international vehicle ID)

L.S.D.

pounds, shillings, and pence

sd.

sound

Sd.

sound

s.d.

Latin sine die (without day, indefinitely)

S.D.

South Dakota
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for SD

Many English speakers likely know this word

Word Value for SD

0
0
Scrabble Words With Friends

Nearby words for sd