| Subject | English | Arabic |
| comp., MS | application definition file | ملف تعريف التطبيق (An XML file that fully describes a single Notification Services application. The ADF file contains the schemas for the events, subscriptions, and notifications; the rules for matching events with subscriptions; and may provide the name of the XSLT file used to format generated notifications) |
| comp., MS | Code Definition window | نافذة تعريف الأوامر البرمجية (A read-only editor view that displays the definition of a symbol in a code file stored in, or referenced by, the active project) |
| comp., MS | data definition language | لغة تعريف البيانات (A language that defines all attributes and properties of a database, especially record layouts, field definitions, key fields, file locations, and storage strategy) |
| comp., MS | data-definition query | استعلام تعريف بيانات (An SQL-specific query that contains data definition language (DDL) statements. These statements allow you to create or alter objects in the database) |
| radio | extended definition television system | تعريف موسع لنظام التلفاز |
| dat.proc. | field definition table | جدول تعاريف الحقول |
| dat.proc. | field definition table | جدول تعريف الحقول |
| comp., MS | form definition file | ملف تعريف النموذج (An XML file with an .xsf extension that contains information about all other files and components used within a form, including user interface customizations, XML Schemas, views, business logic, events, and deployment settings) |
| comp., MS | high-definition DVD | DVD عالي الدقة (A high definition optical disc format which uses a smaller focus blue-violet 405 nm laser allowing higher precision and storage density. A competitor to Blu-ray Disc) |
| comp., MS | high-definition multimedia interface | واجهة متعددة الوسائط رقمية متقدمة (A digital interface specification for delivering digital content and connecting consumer electronic devices) |
| radio | high definition television system | نظام تلفاز عالي الجودة |
| comp., MS | High-Definition Television A type of television that provides much higher resolution, sharpness, sound quality, and picture quality than traditional televisions. HDTVs can usually be used as computer monitors | تلفزيون عالي الجودة (HDTV) |
| comp., MS | Office compatibility definition file | ملف تعريف توافق Office (A file that stores information about compatibility issues and workarounds and makes it available to the Office Telemetry Log and Office Telemetry Dashboard) |
| comp., MS | package definition file | ملف تعريف العبوة (An ASCII text file that contains predefined software distribution objects, such as programs and packages to be used for software deployment) |
| comp., MS | XML schema definition language | لغة تعريف مخطط XML (The World Wide Web Consortium (W3C) standard language used for creating XML schema documents. The XML schema contains two parts: a set of predefined types (for example, string, dateTime, decimal), and an XML language for defining new types (for example, complexType, minOccurs, element)) |