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  • F.D.
    F.D.
    abbreviation
    Fidei Defensor.
  • FD
    FD
    abbreviation
    Fidei Defensor

F.D.

American  

abbreviation

  1. Fidei Defensor.

  2. fire department.

  3. focal distance.


FD British  

abbreviation

  1. Fidei Defensor

"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

Etymology

Origin of FD

Latin: Defender of the Faith


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Mr. Kalinak made the remarks in front of the F.D.

From New York Times ● May 18, 2024

She first heard about “Cop City” from a video by F.D.

From Los Angeles Times ● Mar. 15, 2023

When he was just a boy, his mother connected Al with two pastors, Bishop F.D.

From New York Times ● Mar. 9, 2018

“The only thing that kills you is the heat,” said Villanueva, clad in a dark blue uniform from his cap to his boots as he worked a 12-hour shift at an intersection on F.D.

From Seattle Times ● Oct. 5, 2017

Has he not thrown suspicion upon F.D. by that writing in blood?

From The Living Link by James De Mille

Measure FD was one of eight measures on the Nov. 3 Los Angeles city ballot, all of which were approved by voters.

From Los Angeles Times ● Nov. 12, 2026

“The attacks on this motion and Measure FD were misguided and just flat out incorrect,” Coates said.

From Los Angeles Times ● Nov. 12, 2026

Known as Reg FD, the rule prohibits public companies from selectively disclosing material, nonpublic information to investors, analysts and other market participants who might trade on the information.

From The Wall Street Journal ● Sep. 25, 2025

Nevertheless, the authors suggest that probiotics could well provide a novel therapeutic approach to treating FD, so they call for more research.

From Seattle Times ● Jul. 12, 2023

The back pressure line FD is drawn slightly above the atmospheric line, a distance to represent about 2 pounds per square inch.

From Steam Engines Machinery's Reference Series, Number 70 by Anonymous

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