This is the 3902nd most frequent Swedish word.
landskamp
A "landskamp" is an international match or game between national teams.
Here, 'landskampen' is the definite form indicating a specific international sports match.
Sverige vann landskampen mot Norge med 3-1.
Sweden won the international match against Norway with 3-1.
The word 'landskamp' here refers to an unspecified international match in football, as the definite article is not used.
Nästa vecka ska jag gå på en landskamp i fotboll.
Next week, I will attend an international football match.
In this sentence, 'landskamper', the plural form, is utilized to discuss international matches in general.