| Subject | English | French |
| gen. | be as fit as a fiddle | se porter comme un charme |
| gen. | be fit as a fiddle and hearty | avoir bon pied bon œil |
| industr., construct. | fiddle-back | ondé |
| industr., construct. | fiddle-back | ondulé |
| industr., construct. | fiddle-back | fil ondulé |
| wood. | fiddle-back | bois ondé |
| nat.res., agric. | fiddle-dock | patience violon (Rumex pulcher L.) |
| construct. | fiddle drill | drille à archet |
| construct. | fiddle drill | arçon |
| fish.farm. | fiddle fish | requin-raie (Squatina angelus, Squatina squatina) |
| fish.farm. | fiddle fish | ange de mer commun (Squatina angelus, Squatina squatina) |
| fish.farm. | fiddle fish | angelot (Squatina angelus, Squatina squatina) |
| fish.farm. | fiddle fish | ange de mer (Squatina angelus, Squatina squatina) |
| nat.res., agric. | fiddle-leaf dock | patience violon (Rumex pulcher L.) |
| gen. | fiddle oneself a seat for the concert | resquiller une place pour le concert |
| industr., construct. | fiddle string | fil tendu |
| agric., tech. | hand fiddle | semoir-violon à main |
| fig. | play second fiddle | jouer les troisièmes violons |
| fig. | play second fiddle | jouer les seconds violons |
| gen. | play second fiddle | jouer les seconds rôles (auprès de quelqu'un, to somebody) |
| gen. | play second fiddle | jouer les seconds couteaux (dans une affaire) |
| gen. | scrape away at the fiddle | racler du violon |