This is the 3429th most frequent Catalan word.
ebre
"Ebre" refers to the Ebro River, a major river in northeastern Spain.
Here, 'Ebre' refers to the proper noun name of the river, used geographically to denote the Ebro River.
El riu Ebre és el més llarg d'Espanya.
The Ebro River is the longest in Spain.
In this case, 'Ebre' indicates the river contextually, often referring to the Ebro's ecosystem within environmental studies.
Vaig llegir un article sobre l'ecosistema de l'Ebre.
I read an article about the ecosystem of the Ebro.
Here, 'l'Ebre' is used to describe the valley named after the Ebro river, which shows its influence on naming geographical regions.