| Subject | English | Welsh |
| comp., MS | base character | nod sail (A character that has meaning independent of other characters, or any graphical character that is not a diacritical mark) |
| comp., MS | character code | cod nod (A numeric value that corresponds to a particular character in a set) |
| comp., MS | character map | map nodau (In text-based computer graphics, a block of memory addresses that correspond to character spaces on a display screen. The memory allocated to each character space is used to hold the description of the character to be displayed in that space) |
| comp., MS | Character Map | Map Nodau (A feature in Windows that makes it possible to use characters that are not displayed on the keyboard) |
| comp., MS | character set | set nodau (A grouping of alphabetic, numeric, and other characters that have some relationship in common. For example, the standard ASCII character set includes letters, numbers, symbols, and control codes that make up the ASCII coding scheme) |
| comp., MS | character spacing | bylchau rhwng nodau (The distance between characters in a line of text. Tracking, kerning, and scaling can be used to adjust the space between characters) |
| comp., MS | character style | arddull nodau (A combination of any of the character formatting options identified by a style name) |
| comp., MS | combining character | nod cyfun (A character, such as diacritic, that has no meaning by itself, but overlaps a base character to modify it) |
| comp., MS | composite character | nod cyfansawdd (A text element consisting of a base character and a diacritic or accent mark. Although most common in the Latin script, other scripts (including Greek, Devanagari, and Tamil) also have composite characters) |
| comp., MS | control character | nod rheoli (A character that is inserted in right-to-left and mixed text to specify the formatting of text when the inherent directionality of the text is insufficient to display expected results) |
| comp., MS | leader character | nod arwain (A dot, hyphen, or other character used to create a line that fills the space before a tab stop) |
| comp., MS | list-separator character | nod gwahanu rhestr (A character, usually a comma or semicolon, that separates elements in a list) |
| comp., MS | neutral character | nod niwtral (A character that does not have strong right-to-left or left-to-right language attributes) |
| comp., MS | nonprinting character | nod na chaiff ei argraffu (A character used to control the format of displayed or printed information, rather than to represent a particular letter, digit, or other special character. The space () is one of the more important nonprinting characters) |
| comp., MS | non-spacing character | nod di-fwlch (A character, such as diacritic, that has no meaning by itself, but overlaps a base character to modify it) |
| comp., MS | optical character recognition | adnabod nodau gweledol (A method of translating images of printed text into machine-encoded text) |
| comp., MS | pattern-matching character | nod sy'n cyfateb i batrwm (A keyboard character that can be used to represent one or many characters when conducting a query) |
| comp., MS | precomposed character | nod i'w gysodi (A single character that represents a sequence of characters, usually a combination of a base character and one or more diacritics) |
| comp., MS | reserved character | nod a neilltuwyd (A keyboard character that has a special meaning to a program and, as a result, normally cannot be used in assigning names to files, documents, and other user-generated tools, such as macros. Characters commonly reserved for special uses include the asterisk (*), forward slash (/), backslash (\), question mark (?), and vertical bar (|)) |
| comp., MS | separator character | nod gwahanu (A character you choose to indicate where you want text to separate when you convert a table to text, or where you want new rows or columns to begin when you convert text to a table) |
| comp., MS | space character | bylchnod (A character that is entered by pressing the SPACEBAR on the keyboard and that typically appears on the screen as a blank space) |
| comp., MS | spacing character | nod bylchu (A character with a non-zero width) |
| comp., MS | special character | nod arbennig (A character that is not found on your keyboard and must be inserted from within the software or by pressing a combination of keys on your keyboard) |
| comp., MS | strong character | nod cryf (A character that is part of the set that makes up a particular language, such as vowels and consonants) |
| comp., MS | tab character | Nod Tab (A character used to align lines and columns on screen and in print. Although a tab is visually indistinguishable from a series of blank spaces in most programs, the tab character and the space character are different to a computer. A tab is a single character and therefore can be added, deleted, or overtyped with a single keystroke) |
| comp., MS | wildcard character | nod chwilio (A keyboard character that can be used to represent one or many characters when conducting a query) |