| Subject | English | Welsh |
| 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 | 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 | spacing character | nod bylchu (A character with a non-zero width) |