| Subject | French | English |
| forestr. | combustible de friches | wildland fuel |
| environ. | feu de friches | wildfire |
| environ. | feu de friches | free-burning fire |
| environ. | friche agricole | fallow land Arable land not under rotation that is set at rest for a period of time ranging from one to five years before it is cultivated again, or land usually under permanent crops, meadows or pastures, which is not being used for that purpose for a period of at least one year. Arable land which is normally used for the cultivation of temporary crops but which is temporarily used for grazing is included |
| environ. | friche agricole | fallow land |
| forestr. | friche broussailleuse | bush fallow |
| environ. | friche industrielle | industrial wasteland |
| environ., industr. | friche industrielle | brownfield development site |
| environ., industr. | friche industrielle | obsolete industrial zone |
| environ. | friche industrielle | industrial wasteland Area of land which is no longer usable for cultivation or for any other purpose after having been the site of an industrial plant |
| environ. | friche industrielle | vacant industrial land |
| environ., industr. | friche industrielle | industrial fallow |
| agric. | friche permanente | long term fallow |
| agric. | friche péri-urbaine | fallow on the fringes of towns |
| agric. | friche sociale | social fallowness |
| agric. | friche urbaine | urban waste land |
| construct. | friche urbaine | waste ground |
| construct. | friche urbaine | waste land |
| construct. | friche urbaine | vacant lot |
| agric. | friche urbaine | fallow in urban areas |
| gen. | friche urbaine | brownfield site |
| gen. | friches industrielles | industrial wasteland |
| environ. | incendie de friches | wildfire |
| environ. | incendie de friches | free-burning fire |
| forestr. | interface entre zones résidentielles et zones de friche | residential/wildland interface |
| agric., polit. | laissé en friche | left fallow |
| agric. | mise en friche permanente | permanent fallow |
| construct., mun.plan., environ. | réaménagement de friches | brownfield regeneration |
| construct., mun.plan., environ. | réaménagement de friches | brownfield development |
| construct., mun.plan., environ. | réhabilitation de friches | brownfield regeneration |
| construct., mun.plan., environ. | réhabilitation de friches | brownfield development |
| environ., industr. | réhabilitation de friches industrielles | redevelopment of derelict industrial land |
| forestr. | système de friche forestière | forest fallow system |
| environ. | terrain en friche | uncultivated land |
| environ., construct. | terrain en friche | wild land |
| environ., construct. | terrain en friche | derelict land |
| industr. | terrain en friche | site in its natural state |
| earth.sc. | terre en friche | idle land |
| earth.sc. | terre en friche | fallow land |
| earth.sc. | terre en friche | waste land |
| earth.sc. | terre en friche | fallow |
| gen. | terre en friche | plot of fallow land |
| agric. | terres agraires mises en friche | set-aside farmland |
| environ. | valorisation des espaces en friche | upgrading of fallow land |
| construct., mun.plan., environ. | zone de friche | brownfield site |
| construct., mun.plan., environ. | zone de friche | brownfield land |
| construct., mun.plan., environ. | zone de friche | brownfield |
| environ. | zone en friche | fallow area |
| environ. | zone en friche | fallow area Land area normally used for crop production but left unsown for one or more growing seasons |
| agric. | être en friche | to fallow |
| nat.res. | être en friche | lie idle |
| nat.res. | être en friche | lie uncultivated |
| agric. | être en friche | to lie fallow |
| agric. | être en friche | fallowing |
| agric. | être en friche | lay fallow |