This is the 6196th most frequent French word.
fillon
"Fillon" is not a common French word; it is primarily a surname.
Here, 'Fillon' is used as a proper noun, specifically a surname.
Jean Fillon est venu à la réunion aujourd'hui.
Jean Fillon came to the meeting today.
In this sentence, 'fillon' is used as a noun that refers to a geological vein or streak.
Le fillon dans le rocher indique une présence de minéraux.
The vein in the rock suggests the presence of minerals.
Here, 'fillon' is referenced as a term or word, commenting on its frequency of use.