This is the 10304th most frequent Russian word.
британца
The Russian word "британца" means "of a Briton" or "of a British man" (genitive singular or accusative singular form of "британец").
In this sentence, 'британца' is used in the accusative case as the direct object of the verb 'встретил' (met).
Я встретил британца на конференции.
I met a Brit at the conference.
Here, 'британца' is in the genitive case, indicating possession or relation to 'историю' (history).
Мы обсуждали историю британца и его успехи.
We discussed the Brit’s history and his achievements.
In this example, 'британцу' is in the dative case as it indicates the indirect object of the verb 'дал' (gave).