| Subject | English | Welsh |
| comp., MS | Web Part zone identifier | dynodwr cylchfa Rhan Gwe (A string that identifies a Web Part zone on a Web Parts page) |
| comp., MS | Web Part zone index | mynegai cylchfa Rhan Gwe (An integer that specifies the relative position of a Web Part in a Web Part zone. Web Parts are positioned from the smallest to the largest zone index. If two or more Web Parts have the same zone index, they are positioned adjacent to each other in an undefined order) |