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• dee
  dee

  noun

  a metal loop attached to tack, for fastening gear.
• Dee
  Dee

  noun

  John, 1527–1608, English mathematician and astrologer.

dee

¹ American  

[dee] / di /

noun

1. a metal loop attached to tack, for fastening gear.

   The wire cutters hung from a dee on her saddle.

2. Physics. a hollow electrode for accelerating particles in a cyclotron.

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Dee ² American  

[dee] / di /

noun

1. John, 1527–1608, English mathematician and astrologer.

2. a river in NE Scotland, flowing E into the North Sea at Aberdeen. 90 miles (145 km) long.

3. a river in N Wales and W England, flowing E and N into the Irish Sea. About 70 miles (110 km) long.

4. a male or female given name.

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Dee ¹ British  

/ diː /

noun

1. a river in N Wales and NW England, rising in S Gwynedd and flowing east and north to the Irish Sea. Length: about 112 km (70 miles)

2. a river in NE Scotland, rising in the Cairngorms and flowing east to the North Sea. Length: about 140 km (87 miles)

3. a river in S Scotland, flowing south to the Solway Firth. Length: about 80 km (50 miles)

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Dee ² British  

/ diː /

noun

1. John. 1527–1608, English mathematician, astrologer, and magician: best known for his preface (1570) to the first edition of Euclid in English

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dee ³ British  

/ diː /

verb

1. a Scot word for die 1

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Etymology

Origin of dee

First recorded in 1785–95; so called from its shape, which resembles the letter D

Example Sentences

See Examples For:

dee Dee

The more dee notes in the chickadee-dee-dee call, the higher the threat level.

From Seattle Times ● Oct. 29, 2021

Onion: Yes, usually you’re like “side characters, blah dee blah.”

From Slate ● Aug. 7, 2020

So, oompa loompa doompety dee, if you are wise you will listen to me: Get informed consent before you feed anyone garbage.

From New York Times ● Oct. 24, 2019

He even insisted they keep the “dee dee dee” part.

From The Guardian ● Feb. 8, 2017

Tom and Dessie, fingertips touching, were doing a courtly heel-and- toe while he sang Doodle-doodle-doo and Dessie sang Deedle-deedle- dee, and then they embraced again.

From "East of Eden" by John Steinbeck

All parties will be back in court for the first of two hearings beginning Aug. 13 covering motions to dismiss the case brought by Bobby Dee Presents and Live Nation.

From Los Angeles Times ● Jul. 25, 2026

Forty-one states license CCRCs, says Dee Pekruhn, senior director of life plan communities and continuing care at home at LeadingAge External link.

From Barron's ● Jun. 20, 2026

Several of those killed were part of the 419th Flight Test Squadron, including Davis, Dee, Hovey and Smith.

From Los Angeles Times ● Jun. 17, 2026

“Myles Garrett has been the best player on our team and one of the best defensive players in the history of the game,” owners Dee and Jimmy Haslam said in a statement.

From The Wall Street Journal ● Jun. 2, 2026

“What did Dee Dee promise you to make you come looking for me? I bet I can give you something better. You want money? I got plenty. You want valuables? I got them.”

From "The Manifestor Prophecy" by Angie Thomas