This is the 5012th most frequent French word.
tchadien
Relating to Chad or its people.
Here, 'tchadien' is used as an adjective to describe the origin of the president, relating to Chad.
Le président tchadien a donné une conférence internationale.
The Chadian president gave an international conference.
In this context, 'tchadien' describes the nationality of the student, placing emphasis on his connection to Chad.
Je connais un étudiant tchadien qui étudie en France.
I know a Chadian student who is studying in France.
Here, 'tchadienne' is used to describe the music style or origin, referring to its cultural roots in Chad.