| Design specification - | (Software Engineering) a document that describes the design |
| Design walkthrough - | (Software Engineering) a formal technical review of the design |
| Detail design - | (Software Engineering) a design activity that focuses on the creation of an algorithm |
| Documentation - | (Software Engineering) descriptive information |
| Documents - | (Software Engineering) deliverables produced as part of the software engineering process |
| Domain analysis - | (Software Engineering) an object-oriented software engineering activity that attempts to identify classes that are relevant to an entire application domain, rather than a specific application |
| Dispersing Agent | (Concrete Engineering) An admixture capable of increasing the fluidity of pastes, mortars, or concretes by reduction of interparticle attraction. |
| Dry Rodded Weight | (Concrete Engineering) The weight of dry aggregate rodded into a cylindrical container of diameter approximately equal to the height, each of 3 layers rodded 25 times, and the excess aggregate struck off level with the top of the container |
| dado | รางเข้าไม้, ร่องระหว่างไม้สองแผ่นสวมกันได้สนิท ที่เรียกว่า dado and rabbetระยะทางจากพื้นถึงระดับเอว (ในผนังอาคารด้านใน) |
| dairy | โรงทำ, ร้านจำหน่ายนมเนย |