| Subject | English | Portuguese |
| industr., construct. | fiddle-back | fio ondulado |
| nat.res., agric. | fiddle-dock | labaca sinuada (Rumex pulcher L.) |
| fish.farm. | fiddle fish | anjo (Squatina angelus, Squatina squatina) |
| nat.res., agric. | fiddle-leaf dock | labaca sinuada (Rumex pulcher L.) |
| industr., construct. | fiddle string | fio tenso |
| industr., construct. | fiddle string | fio esticado |