| Subject | English | French |
| comp., MS | extra-light | extra-maigre (Having a font weight that corresponds to a weight class value of 200 according to the OpenType specification) |
| agric. | extra-light harrow | herse très légère |
| astr. | extra-terrestrial light | lumière extraterrestre |
| tech., met. | sheet for light, deep and extra deep drawing | tôle pour emboutissage modéré, profond et extra-profond |