This is the 6962nd most frequent Russian word.
аргентины
The word "аргентины" is the genitive singular or nominative plural form of "Аргентина," meaning "of Argentina" or "Argentinas" in English.
The word 'аргентины' is in the genitive case, used to indicate origin.
Я купил сувенир из Аргентины.
I bought a souvenir from Argentina.
Here, 'аргентины' again uses the genitive case to show possession, denoting that the team belongs to Argentina.
Футбольная команда Аргентины выиграла матч.
The football team of Argentina won the match.
In this example, 'аргентины' is also in the genitive case, used to describe the whole whose aspects are being referenced (beauties of Argentina).