| Subject | English | Dutch |
| IT | reference line | referentielijn |
| tech. | reference line | nullijn |
| commun., IT | reference line unit | referentielijn |
| commun., IT | reference line unit | basislijn |
| gen. | torso reference line | torsoreferentielijn |
| transp., tech. | torso-arm reference line | referentielijn van de torso-arm |
| comp., MS | wall reference line | referentielijn van wand (The line that extends from the wall begin point to the wall endpoint. Although the wall reference line is typically centered on the wall or aligned with one edge of the wall, you can locate it any distance you want from the wall) |