This is the 1263rd most frequent French word.
britannique
"Britannique" means "British" in English.
In this sentence, 'britannique' is used as an adjective to describe the origin or affiliation of the ship as being British.
Le navire britannique a traversé l'océan Atlantique.
The British ship crossed the Atlantic Ocean.
Here, 'britannique' functions as an adjective to qualify the noun 'culture,' indicating that it is associated with Britain.
Il admire la culture britannique pour sa richesse historique.
He admires British culture for its historical richness.
'Britannique' in this example is again an adjective, describing the nationality of the actor, exemplifying how adjectives in French agree in gender and number.