This is the 7269th most frequent Catalan word.
andorrà
"Andorrà" means "Andorran" in English, referring to something or someone from Andorra.
In this sentence, 'andorrà' is an adjective used to describe nationality.
Ell és un ciutadà andorrà.
He is an Andorran citizen.
Here, 'andorrans' is an adjective modifying the noun 'segells' to indicate origin.
Els segells andorrans són molt valuosos.
The Andorran stamps are very valuable.
In this context, 'andorrà' refers to a specific characteristic (dialect) associated with Andorra.