In computer science a field is a smaller piece of data from a larger collection.

Microsoft Office is a proprietary collection of desktop applications intended to be used by knowledge workers for Windows and Macintosh computers. If your question relates to a specific desktop application use that application tag instead.

MapKit is Apple's framework for presenting and annotating scrollable and zoom-enabled maps on iOS, IPadOS, tvOS, watchOS, and macOS.

The UITextView class implements the behavior for a scrollable, multiline text region in iOS. The class supports the display of text using a custom font, color, and alignment and also supports text editing. You typically use a text view to display multiple lines of text, such as when displaying the body of a large text document.

To toggle a boolean variable is to switch it to its opposite state. If it is on, switch it off; if it is off, switch it on. In a desktop or web user interface, a toggle may be clickable switch or button that alternates the state of something in the application.

DirectX is a collection of APIs for handling tasks related to multimedia, especially 3D graphics and game programming and video, on Microsoft platforms.

Subdomain is a domain which is a part of a larger domain. For example, 'sub.example.com' is subdomain of 'example.com' domain.

Underscore is a utility-belt library for JavaScript that provides a lot of the functional programming support that you would expect in Prototype.js (or Ruby), but without extending any of the built-in JavaScript objects. It's the tie to go along with jQuery's tux.

POSIX (Portable Operating System Interface) is a set of standards defining programming APIs, a command interpreter, and common utilities for Unix-like operating systems.

Device driver or software driver is a computer program allowing higher-level computer programs to interact with a hardware device. This tag should only be used for questions related to driver development, as questions about finding or installing drivers are off-topic for Stack Overflow.

Textures are series of images used in computer graphics to associate locations on a visible surface with varying values. This association is typically done by mapping locations on the texture (usually two-dimensional, but other dimensions and types of textures exist) to locations on the rendered surface. Filtering is often used to smooth away aliasing when sampling values from the texture, usually involving multiple images within a texture called mipmaps.