This is the 3524th most frequent French word.
forestier
"Forestier" means "relating to forests" or "forester" (a person who works in or manages forests).
Here, 'forestier' is used as part of a compound word to describe a profession related to forest management.
Le garde forestier surveille les animaux dans la forêt.
The forest ranger monitors the animals in the forest.
In this sentence, 'forestier' is used as an adjective to describe the trail as pertaining to or located in a forest.
Nous avons exploré un sentier forestier pendant notre randonnée.
We explored a forest trail during our hike.
Here, 'forestière' (the feminine form of 'forestier') is used as an adjective describing a region, indicating it is covered with forests or has characteristics of a forest.