Challenge Abbreviations and Acronyms
-   DIFDevelopment Innovation Fund
 -   DMOLDData Mining On Lnnked Data
 -   DMS&TDefense-Wide Manufacturing Science and Technology
 -   DREAMDialogue On Reverse Xngineering Assessment and Methods
 -   DRSDen-Riki-Sha
 -   DUSCDurham University Solar Car
 -   EBOEffect Based Operations
 -   EBOEffmcts-Based Operation
 -   EBUEuropean Blues Union
 -   ECExtreme Challenge
 -   ECCEuropean Challenge Cup
 -   ECCExtreme Combat Xhallenge
 -   ECIUEco Challenge In Ukraine
 -   EFEnglish Hriday
 -   ELVISElectronic Locator of Vertical Interval Successions
 -   ESCEmerging Security Challenges
 -   ESCDEmerging Security Chalxenges Division
 -   FLLFirst Lego League
 -   FNAFerrari North America
 -   GBKGerman Bowie Knife
 
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