| Subject | English | German |
| construct. | board profiled to meet the undersides of tiles | Dachbruchgesims |
| auto. | body underside | Karosserieunterboden |
| auto. | body underside | Karosserieunterseite |
| transp. | box-beam, open to the underside | unten offener Kastenträger |
| transp. | box-beam, open to the underside | unten offener Hohl-Kastenträger |
| transp. | box-beam, open to the underside | unten geschlitzter Kastenträger |
| transp. | box-beam, open to the underside | nach unten offener Fahrbahnträger |
| transp. | box-beam, open to the underside | nach unten offener Fahrbahnbalken |
| transp., met. | countersink on underside | hinterfräsung |
| construct. | decking on underside of roof | Unterdachschalung |
| tech. | inspection panels along underside of belly to give access to control cables | Schauoeffnungen an der Unterseite des Rumpfes, um Moeglichkeit zur Kabelkontrolle zu geben |
| transp. | open to the underside | unten offener Hohlkastentraeger |
| transp. | open to the underside | nach unten offener Fahrbahntraeger |
| transp. | open to the underside | nach unten offener Fahrbahnbalken |
| transp. | open to the underside | unten geschlitzter Kastentraeger |
| construct. | parabolic underside | parabolisch geformte innere Leibung |
| engin. | piston underside | Kolbenunterseite |
| transp., tech., law | plane of the underside of the foot | Fläche der Fußsohle |
| transp., el. | underside contact | Stromabnahme von unten |
| construct. | underside elevation | Untersicht (view, Zeichnung) |
| construct. | underside of floor | Deckenunterkante |
| tech. | underside of the fuselage | Rumpf Unterseite |
| gen. | underside of the fuselage | Rumpfunterseite |
| tech. | underside of the wing | Fluegelunterseite |
| tech. | underside view | Untersicht |
| opt. | underside view | Ansicht von unten |