| | 2ic | | deputy |
| | BIBO | | drink |
| | d8 | | date |
| | DAMHIKT | | don't ask me how I know this |
| | Db8 | | debate |
| | Dcide | | decide |
| | dcm | | do not come monday |
| | dcm | | don't come Monday |
| | DDAIDDAIS | | don't do as I do, do as I say |
| | Dfl8 | | deflate |
| | Dgre | | degree |
| | DGT | | Don't Go There |
| | DHAC | | doesn't have a clue |
| | DHAC | | Don't Have A Clue |
| | dhyb | | dont hold your breath |
| | dImNd | | diamond |
| | dinR | | diner |
| | dis | | December |
| | ditd | | Digital Information Technology Division |
| | ditd | | down in the dumps |
| | DIY | | die |
| | DIY | | do it yourself |
| | dkadaby | | don't keep a dog and bark yourself |
| | DKDC | | don't know don't care |
| | DKDC | | don't know, don't care |
| | dlAd | | defense logistics acquisition directive |
| | dlAd | | delayed |
| | dlAd | | Department of Local Affairs & Development |
| | dlAd | | DNase II-like acid DNase |
| | dlghitm | | don't look a gift horse in the mouth |
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