| Subject | English | French |
| gear.tr. | coast side of tooth | flanc non-utilisable de dent |
| gear.tr. | concave side of tooth | flanc concave de dent de roue conique |
| gear.tr. | convex side of tooth | flanc convexe de dent de roue conique |
| gear.tr. | side of tooth | flanc de dent |
| gear.tr. | top side of tooth | surface de tête de dent |