SD

¹

abbreviation

1. the intelligence and counterespionage service of the Nazi SS.

S.D.

²

abbreviation

1. doctor of science.

SD

³

abbreviation

1. sea-damaged.

2. South Dakota (approved especially for use with zip code).

3. Statistics.,  standard deviation.

S.D.

⁴

abbreviation

1. sea-damaged.

2. senior deacon.

3. South Dakota.

4. special delivery.

5. Statistics.,  standard deviation.

sd.

⁵

abbreviation

1. sound.

S/D

⁶

abbreviation

1. school district.

2. sight draft.

s.d.

⁷

abbreviation

1. sine die.

2. Statistics.,  standard deviation.

SD

¹

abbreviation

1. South Dakota

2. Also: sd. statistics standard deviation

abbreviation

1. Swaziland (international car registration)

sd

²

abbreviation

1. sine die

2. sound

3. philosophy sense datum

sd

³

abbreviation

1. Sudan

Word History and Origins

Origin of SD¹

From the German word Sicherheitsdienst

Origin of SD²

From Latin Scientiae Doctor

Example Sentences

Years later she learnt that USB sticks and SD cards were being smuggled into the country inside boxes of fruit.

From BBC

San Diego County also offers the free SD Emergency app, which includes the ShakeReadySD earthquake early warning tool.

From Los Angeles Times

It’s unclear if the device was able to transmit data over a Wi-Fi signal or if the camera had an SD card that would require the owner to retrieve the equipment to view the video.

From Los Angeles Times

You might even have a couple CDs or older SD cards with copies of family photos on them.

From Los Angeles Times

I walked into the Dodgers’ team store the other day and asked whether I could buy any “Beat SD” merchandise.

From Los Angeles Times